title: Massage

text: Cupping massage is often carried out using plastic cups and a manual hand-pump to create the vacuum. The vacuum draws the soft tissue perpendicular to the skin, providing a tensile force, which can be left in one site or moved along the tissue during the massage.


title: Massage

text: Hand-held battery-operated massaging and vibrating instruments are available, including devices for massaging the scalp following a haircut.


title: Massage

text: There is a widespread market in erotic massage instruments, including electric dildos and vibrators such as the massage wand.


title: Massage

text: The main professionals that provide therapeutic massage are massage therapists, athletic trainers, physical therapists and practitioners of many traditional Chinese and other eastern medicines. Massage practitioners work in a variety of medical settings and may travel to private residences or businesses. Contraindications to massage include deep vein thrombosis, bleeding disorders or taking blood thinners such as warfarin, damaged blood vessels, weakened bones from cancer, osteoporosis, or fractures, and fever.


title: Massage

text: Peer-reviewed medical research has shown that the benefits of massage include pain relief, reduced trait anxiety and depression, and temporarily reduced blood pressure, heart rate, and state of anxiety. Additional testing has shown an immediate increase and expedited recovery periods for muscle performance. Theories behind what massage might do include enhanced skeletal muscle regrowth and remodeling, blocking nociception (gate control theory), activating the parasympathetic nervous system, which may stimulate the release of endorphins and serotonin, preventing fibrosis or scar tissue, increasing the flow of lymph, and improving sleep.


title: Massage

text: Massage is hindered from reaching the gold standard of scientific research, which includes placebo-controlled and double blind clinical trials. Developing a "sham" manual therapy for massage would be difficult since even light touch massage could not be assumed to be completely devoid of effects on the subject. It would also be difficult to find a subject that would not notice that they were getting less of a massage, and it would be impossible to blind the therapist. Massage can employ randomized controlled trials, which are published in peer reviewed medical journals. This type of study could increase the credibility of the profession because it displays that purported therapeutic effects are reproducible.


title: Massage

text: Massage has been shown to reduce neuromuscular excitability by measuring changes in the Hoffman's reflex (H-reflex) amplitude. A decrease in peak-to-peak H-reflex amplitude suggests a decrease in motoneuron excitability. Others explain, "H-reflex is considered to be the electrical analogue of the stretch reflex... and the reduction" is due to a decrease in spinal reflex excitability. Field (2007) confirms that the inhibitory effects are due to deep tissue receptors and not superficial cutaneous receptors, as there was no decrease in H-reflex when looking at light fingertip pressure massage. It has been noted that "the receptors activated during massage are specific to the muscle being massaged," as other muscles did not produce a decrease in H-reflex amplitude.


title: Massage

text: Because the art and science of massage is a globally diverse phenomenon, different legal jurisdictions sometimes recognize and license individuals with titles, while other areas do not. Examples are:


title: Massage

text: In some jurisdictions, practicing without a license is a crime. One such jurisdiction is Washington state, where any health professionals practicing without a license can be issued a fine and charged with a misdemeanor offense.


title: Massage

text: In regulated provinces massage therapists are known as Registered Massage Therapists, in Canada six provinces regulate massage therapy: British Columbia, Ontario, Newfoundland and Labrador, Prince Edward Island, Saskatchewan, and New Brunswick. Registered Massage Therapy in British Columbia is regulated by the College of Massage Therapists of British Columbia (CMTBC). Regulated provinces have, since 2012, established inter-jurisdiction competency standards. Quebec is not provincially regulated. Massage therapists may obtain a certification with one of the various associations operating. There is the Professional Association of Specialized Massage Therapists of Quebec, also named Mon Réseau Plus, which represents 6,300 massage therapists (including ortho therapist, natural therapists, and others), the Quebec Federation of massage therapists (FMQ), and the Association québécoise des thérapeutes naturals; however, none of these are regulated by provincial law.


title: Massage

text: Canadian educational institutions undergo a formal accreditation process through the Canadian Massage Therapy Council for Accreditation (CMTCA).


title: Massage

text: Most types of massage, with the exception of some traditional Chinese medicine, are not regulated in China. Although illegal in China, some of the smaller massage parlors are sometimes linked to the sex industry and the government has taken a number of measures in recent times to curb this. In a nationwide crackdown known as the yellow sweep ("Yellow" in Mandarin Chinese refers to sexual activities or pornographic content), limitations on the design and operation of massage parlors have been placed, going so far as requiring identification from customers who visit massage establishments late at night and logging their visits with the local police.


title: Massage

text: In Germany, massage is regulated by the government on a federal and national level. Only someone who has completed 3,200 hours of training (theoretical and practical) can use the professional title "Masseur und Medizinischer Bademeister" 'Masseur and Medical Spa Therapist'. This person can prolong his training depending on the length of professional experience to a Physiotherapist (1 year to 18 months additional training). The Masseur is trained in Classical Massage, Myofascial Massage, Exercise, and Movement Therapy. During the training, they will study anatomy, physiology, pathology, gynecology, podiatry, psychiatry, psychology, surgery, dermiatry, and orthopedics. They are trained in Electrotherapy and Hydrotherapy. Hydrotherapy includes Kneipp, Wraps, underwater massage, therapeutic washing, Sauna, and Steambath. A small part of their training will include special forms of massage which are decided by the local college, for example, foot reflex zone massage, Thai Massage, etc. Finally, a graduate is allowed to treat patients under the direction of a doctor. Graduates are regulated by the professional body which regulates Physiotherapists. This includes restrictions on advertising and the oath of confidentiality to clients.


title: Massage

text: In India, massage therapy is licensed by The Department of Ayurveda, Yoga & Naturopathy, Unani, Siddha, and Homoeopathy (AYUSH) under the Ministry of Health and Family Welfare (India) in March 1995. Massage therapy is based on Ayurveda, the ancient medicinal system that evolved around 600 BC. In ayurveda, massage is part of a set of holistic medicinal practices, contrary to the independent massage system popular in some other systems. In Siddha, Tamil traditional medicine from south India, massage is termed as "Thokkanam" and is classified into nine types, each for a specific variety of diseases.


title: Massage

text: In Japan, shiatsu is regulated but oil massage and Thai massage are not. Prostitution in Japan is not heavily policed, and prostitutes posing as massage therapists in "fashion health" shops and "pink salons" are fairly common in the larger cities.


title: Massage

text: In Myanmar, massage is unregulated. However, it is necessary to apply for a spa license with the government to operate a massage parlor in major cities such as Yangon. Blind and visually impaired people can become masseurs, but they are not issued licenses. There are a few professional spa training schools in Myanmar but these training centers are not accredited by the government.


title: Massage

text: In Mexico massage therapists, called "sobadores", combine massage using oil or lotion with a form of acupuncture and faith. "Sobadores" are used to relieve digestive system problems as well as knee and back pain. Many of these therapists work out of the back of a truck, with just a curtain for privacy. By learning additional holistic healer's skills in addition to massage, the practitioner may become a "curandero".


title: Massage

text: In some jurisdictions, prostitution in Mexico is legal, and prostitutes are allowed to sell sexual massages. These businesses are often confined to a specific area of the city, such as the Zona Norte in Tijuana.


title: Massage

text: In New Zealand, massage is unregulated. There are two levels of registration with Massage New Zealand, the professional body for massage therapists within New Zealand, although neither of these levels are government recognized. Registration at the certified massage therapist level denotes competency in the practice of relaxation massage. Registration at the remedial massage therapist denotes competency in the practice of remedial or orthopedic massage. Both levels of registration are defined by agreed minimum competencies and minimum hours.


title: Massage

text: In South Africa, massage is regulated, but enforcement is poor. The minimum legal requirement to be able to practice as a professional massage therapist is a two-year diploma in therapeutic massage and registration with the Allied Health Professions Council of SA (AHPCSA). The qualification includes 240 credits, about 80 case studies, and about 100 hours of community service.


title: Massage

text: In Thailand, Thai massage is officially listed as one of the branches of traditional Thai medicine, recognized and regulated by the government. It is considered to be a medical discipline in its own right and is used for the treatment of a wide variety of ailments and conditions. Massage schools, centers, therapists, and practitioners are increasingly regulated by the Ministries of Education and Public Health in Thailand.


title: Massage

text: To practice commercial massage or massage therapy in the UK, an ITEC or VTCT certificate must be obtained through training which includes Beauty and Spa Therapy, Hairdressing, Complementary Therapies, Sports & Fitness Training and Customer Service.


title: Massage

text: Therapists with appropriate paperwork and insurance may join the Complementary and Natural Healthcare Council (CNHC), a voluntary, government regulated, professional register. Its key aim is to protect the public.


title: Massage

text: In addition, there are many professional bodies that have a required minimum standard of education and hold relevant insurance policies including the Federation of Holistic Therapists (FHT), the Complementary Therapists Association (CThA), and the Complementary Health Professionals (CHP). In contrast to the CNHC these bodies exist to support therapists rather than clients.


title: Massage

text: According to research done by the American Massage Therapy Association, as of 2012 in the United States, there are between 280,000 and 320,000 massage therapists and massage school students. As of 2011, there were more than 300 accredited massage schools and programs in the United States. Most states have licensing requirements that must be met before a practitioner can use the title "massage therapist", and some states and municipalities require a license to practice any form of massage. If a state does not have any massage laws then a practitioner need not apply for a license with the state. Training programs in the US are typically 500 hours to 1000 hours in total training time and can award a certificate, diploma, or degree depending on the particular school. There are around 1,300 programs training massage therapists in the US; study will often include anatomy and physiology, kinesiology, massage techniques, first aid and CPR, business, ethical and legal issues, and hands-on practice along with continuing education requirements if regulated. The Commission on Massage Therapy Accreditation (COMTA) is one of the organizations that works with massage schools in the U.S. and there are almost 300 schools that are accredited through this agency.


title: Massage

text: Forty-three states and the District of Columbia currently offer some type of credential to professionals in the massage and bodywork field—usually licensure, certification or registration. Thirty-eight states and the District of Columbia require some type of licensing for massage therapists. In the US, 39 states use the National Certification Board for Therapeutic Massage and Bodywork's certification program as a basis for granting licenses either by rule or statute. The National Board grants the designation Nationally Certified in Therapeutic Massage and Bodywork (NCTMB). There are two tests available and one can become certified through a portfolio process with equivalent training and experience. Between 10% and 20% of towns or counties regulate the profession. The National Certification offered by the NCBTMB does not mean that someone can practice massage in any state. These local regulations can range from prohibition on opposite sex massage, fingerprinting and venereal checks from a doctor, to prohibition on house calls because of concern regarding sale of sexual services.


title: Massage

text: In the US, licensure is the highest level of regulation and this restricts anyone without a license from practicing massage therapy or calling themselves by that protected title. Certification allows only those who meet certain educational criteria to use the protected title and registration only requires a listing of therapists who apply and meet an educational requirement. It is important to note that a massage therapist may be certified, but not licensed. Licensing requirements vary per state, and often require additional criteria be met in addition to attending an accredited massage therapy school and passing a required state-specified exam (basically the certification requirements in many states). In the US, most certifications are locally based. Some states still do not require a license or a certification, but this is changing as more regulatory bodies governing the profession of massage are established in each state. Some states allow license reciprocity, where licensed massage therapists who relocate can relatively easily obtain a license in their new state.


title: Massage

text: In late 2007, the Federation of State Massage Therapy Boards launched a new certification exam titled the MBLEx. Currently, 40 states have accepted this certification exam, along with the District of Columbia, Puerto Rico, and the US Virgin Islands.


title: Massage

text: In 1997 there were an estimated 114 million visits to massage therapists in the US. Massage therapy is the most used type of alternative medicine in hospitals in the United States. Between July 2010 and July 2011 roughly 38 million adult Americans (18 percent) had a massage at least once.


title: Massage

text: People state that they use massage because they believe that it relieves pain from musculoskeletal injuries and other causes of pain, reduces stress and enhances relaxation, rehabilitates sports injuries, decreases feelings of anxiety and depression, and increases general well-being.


title: Massage

text: In a poll of 25–35-year-olds, 79% said they would like their health insurance plan to cover massage. In 2006 Duke University Health System opened up a center to integrate medical disciplines with CAM disciplines such as massage therapy and acupuncture. There were 15,500 spas in the United States in 2007, with about two-thirds of the visitors being women.


title: Massage

text: The number of visits rose from 91 million in 1999 to 136 million in 2003, generating a revenue that equals $11 billion. Job outlook for massage therapists was also projected to grow at 20% between 2010 and 2020 by the Bureau of Labor Statistics, faster than the average.


title: Samira Khashoggi

text: Samira Khashoggi (, 1935 – March 1986) was a Saudi Arabian progressive author, as well as the founder of "Al Sharkiah" magazine. She was the sister of Saudi businessman Adnan Khashoggi. She was the first wife of Egyptian-born businessman Mohamed Al-Fayed and the mother of filmmaker Dodi Al-Fayed. She died of a heart attack in 1986 at the age of 51.


title: Samira Khashoggi

text: Her father Muhammad Khashoggi was King Abdulaziz Al Saud's personal doctor. She was educated in Egypt.


title: Samira Khashoggi

text: Samira Khashoggi wrote under the pseudonym Samirah, 'Daughter of the Arabian Peninsula'. Her books include "Wadda't Amali" ("Farewell to my Dreams", 1958), "Thekrayāt Dām'ah" ("Tearful Memories", 1963), "Wara' Aldabab" ("Beyond the Cloud", 1971), "Qatrat Min ad-Dumu"' ("Teardrops", 1979) and "Barīq Aynaik" ("The Sparkle of Your Eyes"). Since 1972, "Al Sharkiah" has been the leading monthly pan-Arab women's magazine.


title: Samira Khashoggi

text: In 1962, Khashoggi began to head a women's welfare association, Al Nahda, which was based in Riyadh and was the first organization targeted women in Saudi Arabia. She was one of the Saudi women who supported the education of girls.


title: Samira Khashoggi

text: She met Mohamed Al Fayed on the beach in Alexandria and they married in 1954. The marriage lasted two years, and produced one child, Dodi Fayed. Samira separated from Mohamed Al Fayed just months after Dodi's birth and returned to Saudi Arabia. She then married Saudi Ambassador Anas Yassin, and had her second child, Jumana Yassin.


title: Samira Khashoggi

text: Samira was the aunt of actress and producer Nabila Khashoggi and of political journalist Jamal Khashoggi.


title: Samira Khashoggi

text: Her son Dodi was reportedly devoted to her, and would telephone her almost every day up to her death. Dodi once told a friend: "If it meant giving up everything I have—cars, wealth, and women—I would do it to bring my mother back."


title: Kh-55

text: The Kh-55 (, also known as RKV-500; NATO reporting name: AS-15 "Kent") is a Soviet/Russian subsonic air-launched cruise missile, designed by MKB Raduga in the 1970s. It has a range of up to and can carry nuclear warheads. Kh-55 is launched exclusively from bomber aircraft and has spawned a number of conventionally armed variants mainly for tactical use, such as the Kh-65SE and Kh-SD, but only the Kh-101 and Kh-555 appear to have been put into service. Contrary to popular belief, the Kh-55 was not the basis of the submarine and ground-launched S-10 Granat or RK-55 "Relief" (SS-N-21"Sampson" and SSC-X-4"Slingshot") designed by NPO Novator. The RK-55 is very similar to the air-launched Kh-55 (AS-15 "Kent") but the Kh-55 has a drop-down turbofan engine and was designed by MKB Raduga.


title: Kh-55

text: In the late 1960s, the "Ekho" study conducted by the GosNIIAS institute concluded that it would be more effective to deploy many small, subsonic cruise missiles than the much more expensive supersonic missiles then in favour. Work started at the Raduga bureau on an air-launched cruise missile in 1971, with a first test flight in 1976. The appearance of the US Air Force's AGM-86 ALCM in that year gave further impetus to the programme, with the Soviet Air Force issuing a formal requirement for a new air-launched cruise missile in December 1976. The longer-range Kh-55SM was developed a few years after the original went into service. In the late 1980s work began on a replacement missile with either conventional (Kh-101/X-101) or nuclear (Kh-102) warheads and greater stealth. It was designed by Igor Seleznyev of Raduga. The importance of advanced missiles as "force multipliers" increased as Russia's fleet of available cruise-missile bombers declined in the early 1990s. The cancellation of the ambitious Kh-90 ramjet missile due to INF Treaty in 1987 led to a renewed emphasis on improving the Kh-55, in particular to achieve the <20 m accuracy required to hit infrastructure targets with conventionalas opposed to nuclearwarheads. The first flight of the Kh-101 was in 1998, and evaluation trials started in 2000.


title: Kh-55

text: After the end of the Cold War and anti-proliferation treaties restricting the deployment of long-range nuclear missiles, the Russians made efforts to develop tactical versions of the Kh-55 with conventional warheads. First came the 600 km-range Kh-65SE (derived from the Kh-55) announced in 1992, then the 300 km-range Kh-SD tactical version of the Kh-101 for export, and finally the Kh-555. In 2001 the Russian Air Force are believed to have selected the Kh-101 and Kh-555 for development.


title: Kh-55

text: A 1995 Russian document suggested that a complete production facility had been transferred to Shanghai, for the development of a nuclear-armed cruise missile. Originally it was thought that this was based on the 300 km-range Raduga Kh-15 (AS-16 "Kickback"), but it now appears that it was the Kh-55 that was transferred to China.


title: Kh-55

text: Kh-101/102 is the latest development of the Kh-55, incorporating a low radar cross-section of about 0.01 square meters. The Kh-101/102 is specifically designed for air-launch, abandoning the circular fuselage cross-section of the Kh-55 for a nose and forward fuselage section aerodynamically shaped to produce lift. It is long with a launch weight of , and is equipped with a high-explosive, penetrating, or cluster warhead, or a 250 kt nuclear warhead for the Kh-102. The missile is powered by a TRDD-50A turbojet producing 450 kgf of thrust to cruise at with a maximum speed of while flying 30–70 m above the ground, and hit fixed targets using a pre-downloaded digital map for terrain following and GLONASS/INS for trajectory correction to achieve accuracy of 6–10 meters; it is claimed to be able to hit small moving targets such as vehicles using a terminal electro-optical sensor or imaging infrared system. Range estimates vary from , to . With a flight endurance of 10 hours; long range is essential since Russia has few bases abroad and cannot provide distant fighter escorts. The Tu-95MS can carry eight of the weapons on four under-wing pylons, and the Tu-160 can be outfitted with two drum launchers each loaded with six missiles, but the smaller Tu-22M3 will continue to carry the Kh-55, although it can also carry the Kh-101/Kh-102. The missiles are equipped with an onboard EW defence system as of late 2018. The first tests were conducted in 1995 and the missile was accepted for service in 2012.


title: Kh-55

text: It is powered by a single 400 kgf Ukrainian-made, Motor Sich JSC R95-300 turbofan engine, with pop-out wings for cruising efficiency. It can be launched from both high and low altitudes, and flies at subsonic speeds at low levels (under 110 m/300 ft altitude). After launch, the missile's folded wings, tail surfaces and engine deploy. It is guided through a combination of an inertial guidance system plus a terrain contour-matching guidance system which uses radar and images stored in the memory of an onboard computer to find its target. This allows the missile to guide itself to the target with a high degree of accuracy.


title: Kh-55

text: The original Kh-55 had a drop-down engine; the Kh-65SE had a fixed external turbojet engine, while the Kh-SD had its engine inside the body of the missile. Production versions in 2013 were equipped with the increased-power 450 kgf Russian-made NPO Saturn TRDD-50A engine.


title: Kh-55

text: In the nuclear role, Kh-55 carries a warhead designed TK66, with a warhead weight of . The mass-size simulator for the warhead is designated KTS-120-12.


title: Kh-55

text: The original Kh-55 entered service on 31 December 1983. The Kh-55SM followed in 1987. The conventionally armed Kh-55SE was flight tested on 13 January 2000, and first used in exercises over the Black Sea 17–22 April 2000. The Kh-555 is thought to have entered service in 2004, the first pictures of the Kh-101 appeared in 2007.


title: Kh-55

text: The Kh-55 can be carried by the Tu-95MS (NATO "Bear-H") and Tu-142M (NATO "Bear-F"), and the Kh-55SM is carried by the Tupolev Tu-160 "White Swan" (NATO "Blackjack"). Sixteen Kh-55's can be carried by the Tu-95MS16 variant, ten on underwing hardpoints and six on an MKU-5-6 rotary launcher. The missile was also tested on the Tu-22M (NATO "Backfire") bombers.


title: Kh-55

text: The Kh-SD tactical version was to have been carried by the Tu-95MS (fourteen missiles) and the Tu-22M (eight missiles). The Kh-101 is expected to be carried by the Tu-160 (twelve missiles), Tu-95MS16 (eight missiles), Tu-22M3 (four missiles) and Su-34 (two missiles).


title: Kh-55

text: The end of the Cold War left Ukraine with 1,612 Kh-55s, part of the armament of the 19 Tu-160s of the 184th Heavy Bomber Regiment at Pryluky and the 25 Tu-95MSs of the 182nd Heavy Bomber Regiment at Uzin-Shepelovka. It was reported that Ukraine demanded US$3 billion for the return of the planes and their missiles to Russia. In October 1999, a compromise was reached that saw Russia pay US$285 million for eight Tu-160 and three Tu-95MS bombers and 575 Kh-55 cruise missiles, while the rest were meant to be destroyed under U.S.-led Nunn–Lugar Cooperative Threat Reduction programme. However, in March 2005 Ukraine's prosecutor-general Sviatoslav Piskun said that in 2001, twelve Kh-55s had been exported to Iran in a deal said to be worth US$49.5 million, and an additional six Kh-55s were exported to China. In March 2015, Iran subsequently revealed the existence of the Soumar cruise missile.


title: Kh-55

text: In the course of the Russian military intervention in the Syrian Civil War on 17 November 2015, Russian Defence Ministry reported that Tupolev Tu-95MS and Tupolev Tu-160 strategic bombers launched a total of 34 air-launched cruise missiles against 14 ISIL targets in Syria. While the Tu-95MS used the Kh-55 cruise missiles, the Tu-160 were equipped with the stealthy Kh-101 variant in their first combat use.


title: Kh-55

text: Russian news agency TASS reported on 17 November 2016 that modernized Tu-95MS armed with Kh-555 and Kh-101 air-launched cruise missiles had launched airstrikes against targets described as terrorist in Syria.


title: Kh-55

text: On 17 February 2017, Tu-95MS strategic bombers, flying from the Russian territory through the airspace of Iran and Iraq, attacked purported ISIL facilities near the Syrian city of Raqqa with the Kh-101 cruise missiles. The targets included purported militant camps and training centers as well as a command center of a major ISIL unit. Russian Tu-95MS long-range bombers struck ISIL targets in Syria again on 5 July 2017, at a range of about 1,000 kilometers. On 26 September 2017, Russia's Tu-95MS strategic bombers carried out further missile strikes with Kh-101 on ISIL and the Syrian branch of al-Qaeda (now known as Hayat Tahrir al-Sham) in the provinces of Idlib and Deir Ezzor.


title: Kh-55

text: The Kh-101 has been used extensively in the 2022 Russian invasion of Ukraine. US Department of Defense sources said that they experienced a not-insignificant failure rate: "either they're failing to launch, or they're failing to hit the target, or they're failing to explode on contact.". "Ukraine at War: Paving the Road from Survival to Victory", a July 2022 study published by the UK Royal United Services Institute (RUSI) for Defense and Security Studies, disagrees, according to testimonies from Ukrainian military specialists and inspection of missile components, saying "Briefings by the Pentagon have reported that a large number of Russian cruise missiles fail to either find their targets or malfunction and crash in flight. As far as Ukrainian military scientists can determine, this is actually quite rare."


title: Kh-55

text: On 6 March 2022, about eight Kh-101 cruise missiles launched by Tu-160 and Tu-95MS strategic bombers from over the Black Sea targeted the Havryshivka Vinnytsia International Airport.


title: Kh-55

text: On 14 September 2022, Ukrainian MoD reported Russian forces used eight Kh-101 cruise missiles, probably from Tu-95MS bombers, to target various hydraulic structures in Kryvyi Rih. This caused the water level of the Inhulets river to rise sharply. Previously it was reported that Kh-22 missiles had been used.


title: Kh-55

text: The UK Ministry of Defence said in November 2022 that it appeared that Russian forces, due to very much depleted weapons stores, were firing old AS-15 Kent cruise missiles with the nuclear warheads apparently replaced by inert ballast, hoping merely to distract Ukrainian air defenses. However the missiles can still pose a serious risk due to their kinetic energy and any unspent fuel left in the missile that might explode.


title: Kh-55

text: It was believed originally that the RK-55 (SSC-X-4 "Slingshot" and SS-N-21 "Sampson") were land- and submarine-launched derivatives of the Kh-55, but it is now known that the Kh-55 is different from the other two as its motor drops down below the missile during flight.


title: Ever Given

text: Ever Given () is one of the largest container ships in the world. The ship is owned by Shoei Kisen Kaisha (a ship-owning and leasing subsidiary of the large Japanese shipbuilding company Imabari Shipbuilding), and is time chartered and operated by container transportation and shipping company Evergreen Marine, headquartered in Luzhu, Taoyuan, Taiwan. "Ever Given" is registered in Panama and her technical management is the responsibility of the German ship management company Bernhard Schulte Shipmanagement (BSM).


title: Ever Given

text: On 23 March 2021, while traveling from Tanjung Pelepas in Malaysia to Rotterdam in the Netherlands under Captain Krishnan Kanthavel, the ship ran aground in the Suez Canal. It remained in place for six days before salvage crews freed her on 29 March 2021. The vessel was impounded by the Egyptian government on 13 April 2021 for refusing to pay a reported $916 million in fees demanded by the government, including $300 million in "loss of reputation". The compensation claim was later cut down to $600 million. In early July 2021, the ship was released by the Egyptian authorities following an agreement on compensation.


title: Ever Given

text: "Ever Given" () is one of 13 container ships built to the "Imabari 20000" design developed by Imabari Shipbuilding, 11 of which have been chartered by Evergreen Marine with names starting with "Ever G—". The ship was laid down on 25 December 2015, launched on 9 May 2018 and completed on 25 September 2018. It is Evergreen's second ship to be named "Ever Given"; the first one () was built in 1986 and has since been broken up.


title: Ever Given

text: With a length overall of , "Ever Given" is one of the longest ships in service. The hull has a beam of and her height from keel to main deck (hull depth) is . Fully laden at design draught, "Ever Given" draws of water while the scantling draught, which is used as the basis of hull strength and structural design, is . "Ever Given" has a gross tonnage of 220,940; net tonnage of 99,155; and deadweight tonnage of 199,629 tons at design draught. The ship's container capacity is .


title: Ever Given

text: As with most large container ships, "Ever Given"s propulsion system consists of a single low-speed two-stroke diesel engine coupled to a large fixed-pitch propeller. The 11-cylinder straight engine, license-manufactured MitsuiMAN B&W 11G95ME-C9, produces at 79 rpm and gives the vessel a service speed of . In addition, "Ever Given" has four straight-8 Yanmar 8EY33LW auxiliary diesel generators that produce electricity. For maneuvering in ports, the vessel has two bow thrusters.


title: Ever Given

text: On 9 February 2019, the ship collided with and heavily damaged "Finkenwerder", a HADAG ferry boat which was berthed at Blankenese, near the harbour of Hamburg. Two minutes after the collision, a traffic ban on the Elbe river was mandated due to high winds.


title: Ever Given

text: At 07:40 Eastern European Time () on 23 March 2021, as it was passing through the Suez Canal on her way to Rotterdam from Tanjung Pelepas, "Ever Given" became stuck (coordinates ) near the village of Manshiyet Rugola and blocked the canal. According to a statement by the Suez Canal Authority (SCA), the ship ran aground diagonally after losing the ability to steer amid high winds and a dust storm. In a separate statement, Evergreen Marine said that it had been told the ship "was suspected of being hit by a sudden strong wind, causing the hull to deviate from [the] waterway and accidentally hit the bottom". The ship ended up with her bow wedged in one bank of the canal and stern nearly touching the other.


title: Ever Given

text: The ship, which had no tugboat, was the fifth in a northbound convoy, behind two prior container ships that were each paired with a tugboat. There were fifteen vessels behind it when it ran aground. Traffic in both directions was blocked for just over six days, leading to a traffic jam of over two hundred vessels. On 24 March, Bernhard Schulte Shipmanagement (BSM), the technical manager of the ship, denied earlier reports that it had been partially refloated. In addition, trade experts were worried about a supply chain delay, and tension due to the delay for the ships trapped as well as other vessels that planned to cross the Suez.


title: Ever Given

text: Eight tugboats worked to re-float the vessel in collaboration with excavators removing sand from the side of the canal where the bow of the vessel was wedged. After an overnight break, the salvage work resumed in the morning of 25 March.


title: Ever Given

text: Egyptian meteorologists reported that high winds and a sandstorm had affected the area on the day of the grounding, with winds gusting as much as . Addressing a press conference on 27 March, Admiral Osama Rabie, chairman of the SCA, said that weather conditions were "not the main reasons" for the ship's grounding, adding, "There may have been technical or human errors ... All of these factors will become apparent in the investigation."


title: Ever Given

text: Aided by high , the ship was partially freed from sediment and re-floated on 29 March 2021 at 05:42 EGY (03:42 UTC), apart from the bow, which was still caught.


title: Ever Given

text: The ship was finally freed in the afternoon at 15:05 EGY (13:05 UTC), and the ship started moving under tow towards the Great Bitter Lake for technical inspection, the first step towards reopening the canal, planned for later that day. After the canal had been checked for damage, the SCA informed shipping agencies that shipping was to resume from 19:00 local time (17:00 UTC).


title: Ever Given

text: On 13 April, the SCA announced that the ship had been seized on court orders until the owners paid $900 million in damages. On 4 July 2021 the German newspaper "Der Spiegel" reported that the owners and the SCA had agreed on compensation, although the exact amount remained unclear. The ship departed from the Suez Canal on 7 July for scheduled deliveries of cargo at several European ports.


title: Ever Given

text: On 7 July 2021, Egyptian authorities released the ship after an unspecified settlement was reached. It was announced that Egypt would also receive a 75-ton tugboat from the ship's Japanese owner, Shoei Kisen Kaisha, as part of the compensation package. "Ever Given" sailed to Port Said. Hull inspections were carried out, with the vessel finally departing on 12 July, after a seizure delay of more than 100 days.


title: Ever Given

text: The ship finally arrived at her destination, the Rotterdam Maasvlakte, NL, container terminal on 29 July, after sailing for 17 days, (although the trip was originally expected to take 9 days


title: Ever Given

text: 22 days after her release by the Egyptian government, and over four months after her grounding;. It became a tourist attraction during that time. After unloading about three quarters of the load in Rotterdam, "Ever Given" departed on 2 August, mooring in Felixstowe Trinity Container Terminal on 3 August to complete unloading, before going out of service prior to inspection at Harwich Anchorage by Leask Marine (Orkney) on behalf of American Bureau of Shipping.


title: Ever Given

text: She departed 6 August, for refueling at Malta Bunkering Area 3, preceded by "Scot Munchen," on 15 August.


title: Ever Given

text: During the morning of 20 August, "Ever Given" transited through the Suez Canal, within a 22-vessel convoy.


title: Ever Given

text: On 20 September 2021 the ship arrived at Qingdao Port anchorage, before berthing alongside the sufficiently large dry dock facilities for repairs on 4 October. Qingdao is also close to Chinese shipping ports where the vessel was projected to re-enter service in late October


title: Ever Given

text: Photographs taken upon arrival at Qingdao Beihai Shipbuilding Heavy Industry pier indicate bow crumple damage extending as far back as the rear bow thruster tunnel. After spending nearly six weeks in dry dock there, it returned to service in November 2021, docking at Qingdao and Shanghai before continuing on her normal route.


title: American Football League

text: The American Football League (AFL) was a major professional American football league that operated for ten seasons from 1960 until 1970, when it merged with the older National Football League (NFL), and became the American Football Conference. The upstart AFL operated in direct competition with the more established NFL throughout its existence. It was more successful than earlier rivals to the NFL with the same name, the 1926, 1936 and 1940 leagues, and the later All-America Football Conference (which existed between 1944 and 1950 but only played between 1946 and 1949).


title: American Football League

text: This fourth version of the AFL was the most successful, created by a number of owners who had been refused NFL expansion franchises or had minor shares of NFL franchises. The AFL's original lineup consisted of an Eastern division of the New York Titans, Boston Patriots, Buffalo Bills, and the Houston Oilers, and a Western division of the Los Angeles Chargers, Denver Broncos, Oakland Raiders, and Dallas Texans. The league first gained attention by signing 75% of the NFL's first-round draft choices in 1960, including Houston's successful signing of college star and Heisman Trophy winner Billy Cannon.


title: American Football League

text: While the first years of the AFL saw uneven competition and low attendance, the league was buttressed by a generous television contract with the American Broadcasting Company (ABC), followed by a contract with the competing National Broadcasting Company (NBC) for games starting with the 1965 season, that broadcast the more offense-oriented football league nationwide. Continuing to attract top talent from colleges and the NFL by the mid-1960s, as well as successful franchise shifts of the Chargers from L.A. south to San Diego and the Texans north to Kansas City (becoming the Kansas City Chiefs), the AFL established a dedicated following. The transformation of the struggling Titans into the New York Jets under new ownership, including the signing of University of Alabama star quarterback Joe Namath, further solidified the league's reputation among the major media.


title: American Football League

text: As fierce competition made player salaries skyrocket in both leagues, especially after a series of "raids", the leagues agreed to a merger in 1966. Among the conditions were a common draft and a championship game played between the two league champions first played in early 1967, which would eventually become known as the Super Bowl.


title: American Football League

text: The AFL and NFL operated as separate leagues until 1970, with separate regular season and playoff schedules except for the championship game. NFL Commissioner Pete Rozelle also became chief executive of the AFL from July 26, 1966, through the completion of the merger. During this time the AFL expanded, adding the Miami Dolphins and Cincinnati Bengals. After losses by the Kansas City Chiefs and Oakland Raiders in the first two AFL-NFL World Championship Games to the Green Bay Packers (1966–67), the New York Jets and Chiefs won Super Bowls III and IV (1968–69) respectively, cementing the league's claim to being an equal to the NFL.


title: American Football League

text: In 1970, the AFL was absorbed into the NFL and the league reorganized with the ten AFL franchises along with three existing NFL teams: the Baltimore Colts, the Cleveland Browns, and the Pittsburgh Steelers, becoming part of the newly formed American Football Conference.


title: American Football League

text: During the 1950s, the National Football League had grown to rival Major League Baseball as one of the most popular professional sports leagues in the United States. One franchise that did not share in this newfound success of the league was the Chicago Cardinals – owned by the Bidwill family – who had become overshadowed by the more popular Chicago Bears. The Bidwills hoped to move their franchise, preferably to St. Louis, but could not come to terms with the league, which demanded money before it would approve the move. Needing cash, the Bidwills began entertaining offers from would-be investors, and one of the men who approached the Bidwills was Lamar Hunt, son and heir of millionaire oilman H. L. Hunt. Hunt offered to buy the Cardinals and move them to Dallas, where he had grown up. However, these negotiations came to nothing, since the Bidwills insisted on retaining a controlling interest in the franchise and were unwilling to move their team to a city where a previous NFL franchise had failed in . While Hunt negotiated with the Bidwills, similar offers were made by Bud Adams, Bob Howsam, and Max Winter.


title: American Football League

text: When Hunt, Adams, and Howsam were unable to secure a controlling interest in the Cardinals, they approached NFL commissioner Bert Bell and proposed the addition of expansion teams. Bell, wary of expanding the 12-team league and risking its newfound success, rejected the offer. On his return flight to Dallas, Hunt conceived the idea of an entirely new league and decided to contact the others who had shown interest in purchasing the Cardinals. In addition to Adams, Howsam, and Winter, Hunt reached out to Bill Boyer, Winter's business partner, to gauge their interest in starting a new league. Hunt's first meeting with Adams was held in March 1959. Hunt, who felt a regional rivalry would be critical for the success of the new league, convinced Adams to join and found his team in Houston. Hunt next secured an agreement from Howsam to bring a team to Denver.


title: American Football League

text: After Winter and Boyer agreed to start a team in Minneapolis-Saint Paul, the new league had its first four teams. Hunt then approached Willard Rhodes, who hoped to bring pro football to Seattle. However, not wanting to undermine its own brand, the University of Washington was unwilling to let the fledgling league use Husky Stadium, and Rhodes' effort came to nothing (Seattle would later get a pro football team of its own). Hunt also sought franchises in Los Angeles, Buffalo and New York City. During the summer of 1959, he sought the blessings of the NFL for his nascent league, as he did not seek a potentially costly rivalry. Within weeks of the July 1959 announcement of the league's formation, Hunt received commitments from Barron Hilton and Harry Wismer to bring teams to Los Angeles and New York, respectively. His initial efforts for Buffalo, however, were rebuffed, when Hunt's first choice of owner, Pat McGroder, declined to take part; McGroder had hoped that the threat of the AFL would be enough to prompt the NFL to expand to Buffalo.


title: American Football League

text: On August 14, 1959, the first league meeting was held in Chicago, and charter memberships were given to Dallas, New York, Houston, Denver, Los Angeles, and Minneapolis-Saint Paul. On August 22, the league officially was named the American Football League at a meeting in Dallas. The NFL's initial reaction was not as openly hostile as it had been with the earlier All-America Football Conference (AAFC), as Bell had even given his public approval; but he died suddenly in October 1959, and individual NFL owners soon began a campaign to undermine the new league. AFL owners were approached with promises of new NFL franchises or ownership stakes in existing ones. Only the party from Minneapolis-Saint Paul accepted, and with the addition of Ole Haugsrud and Bernie Ridder the Minnesota group joined the NFL in 1961 as the Minnesota Vikings. The older league also announced on August 29 that it had conveniently reversed its position against expansion, and planned to bring new NFL teams to Houston and Dallas, to start play in 1961. (The NFL did not expand to Houston at that time, the promised Dallas team – the Dallas Cowboys – actually started play in 1960, and the Vikings began play in 1961.) Finally, the NFL quickly came to terms with the Bidwills and allowed them to relocate the struggling Cardinals to St. Louis, eliminating that city as a potential AFL market.


title: American Football League

text: Ralph Wilson, who owned a minority interest in the NFL's Detroit Lions at the time, initially announced he was placing a team in Miami, but like the Seattle situation, was also rebuffed by local ownership (like Seattle, Miami would later get a pro football team of its own as well); given five other choices, Wilson negotiated with McGroder and brought the team that became the Bills to Buffalo. Buffalo was officially awarded its franchise on October 28. During a league meeting on November 22, a 10-man ownership group from Boston (led by Billy Sullivan) was awarded the AFL's eighth team. On November 30, 1959, Joe Foss, a World War II Marine fighter ace and former governor of South Dakota, was named the AFL's first commissioner. Foss commissioned a friend of Harry Wismer's to develop the AFL's eagle-on-football logo. Hunt was elected President of the AFL on January 26, 1960.


title: American Football League

text: The AFL's first draft took place the same day Boston was awarded its franchise, and lasted 33 rounds. The league held a second draft on December 2, which lasted for 20 rounds. Because the Oakland Raiders joined after the AFL draft, they inherited Minnesota's selections. A special "allocation draft" was held in January 1960, to allow the Raiders to stock their team, as some of the other AFL teams had already signed some of Minneapolis' original draft choices.


title: American Football League

text: In November 1959, Minneapolis-Saint Paul owner Max Winter announced his intent to leave the AFL to accept a franchise offer from the NFL. In 1961, his team began play in the NFL as the Minnesota Vikings. Los Angeles Chargers owner Barron Hilton demanded that a replacement for Minnesota be placed in California, to reduce his team's operating costs and to create a rivalry. After a brief search, Oakland was chosen and an ownership group led by F. Wayne Valley and local real estate developer Chet Soda was formed. After initially being called the Oakland ""Señores"", the Oakland Raiders officially joined the AFL on January 30, 1960.


title: American Football League

text: The AFL's first major success came when the Houston Oilers signed Billy Cannon, the All-American and 1959 Heisman Trophy winner from LSU. Cannon signed a $100,000 contract to play for the Oilers, despite having already signed a $50,000 contract with the NFL's Los Angeles Rams. The Oilers filed suit and claimed that Rams general manager Pete Rozelle had unduly manipulated Cannon. The court upheld the Houston contract, and with Cannon the Oilers appeared in the AFL's first three championship games (winning two).


title: American Football League

text: On June 9, 1960, the league signed a five-year television contract with ABC, which brought in revenues of approximately $2.125 million per year for the entire league. On June 17, the AFL filed an antitrust lawsuit against the NFL, which was dismissed in 1962 after a two-month trial. The AFL began regular-season play (a night game on Friday, September 9, 1960) with eight teams in the league – the Boston Patriots, Buffalo Bills, Dallas Texans, Denver Broncos, Houston Oilers, Los Angeles Chargers, New York Titans, and Oakland Raiders. Raiders' co-owner Wayne Valley dubbed the AFL ownership "The Foolish Club", a term Lamar Hunt subsequently used on team photographs he sent as Christmas gifts.


title: American Football League

text: The Oilers became the first-ever league champions by defeating the Chargers, 24–16, in the AFL Championship on January 1, 1961. Attendance for the 1960 season was respectable for a new league, but not nearly that of the NFL. In 1960, the NFL averaged attendance of more than 40,000 fans per game and more popular NFL teams in 1960 regularly saw attendance figures in excess of 50,000 per game, while CFL attendances averaged approximately 20,000 per game. By comparison, AFL attendance averaged about 16,500 per game and generally hovered between 10,000 and 20,000 per game. Professional football was still primarily a gate-driven business in 1960, so low attendance meant financial losses. The Raiders, with a league-worst average attendance of just 9,612, lost $500,000 in their first year and only survived after receiving a $400,000 loan from Bills owner Ralph Wilson. In an early sign of stability, however, the AFL did not lose any teams after its first year of operation. In fact, the only major change was the Chargers' move from Los Angeles to nearby San Diego (they would return to Los Angeles in 2017).


title: American Football League

text: On August 8, 1961, the AFL challenged the Canadian Football League to an exhibition game that would feature the Hamilton Tiger-Cats and the Buffalo Bills, which was attended by 24,376 spectators. Playing at Civic Stadium in Hamilton, Ontario, the Tiger-Cats defeated the Bills 38–21 playing a mix of AFL and CFL rules.


title: American Football League

text: While the Oilers found instant success in the AFL, other teams did not fare as well. The Oakland Raiders and New York Titans struggled on and off the field during their first few seasons in the league. Oakland's eight-man ownership group was reduced to just three in 1961, after heavy financial losses in their first season. Attendance for home games was poor, partly due to the team playing in the San Francisco Bay Area—which already had an established NFL team (the San Francisco 49ers)—but the product on the field was also to blame. After winning six games in their debut season, the Raiders won a total of three times in the 1961 and 1962 seasons. Oakland took part in a 1961 supplemental draft meant to boost the weaker teams in the league, but it did little good. They participated in another such draft in 1962.


title: American Football League

text: The Titans fared a little better on the field but had their own financial troubles. Attendance was so low for home games that team owner Harry Wismer had fans move to seats closer to the field to give the illusion of a fuller stadium on television. Eventually Wismer could no longer afford to meet his payroll, and on November 8, 1962, the AFL took over operations of the team. The Titans were sold to a five-person ownership group headed by Sonny Werblin on March 28, 1963, and in April the new owners changed the team's name to the New York Jets.


title: American Football League

text: The Raiders and Titans both finished last in their respective divisions in the 1962 season. The Texans and Oilers, winners of their divisions, faced each other for the 1962 AFL Championship on December 23. The Texans dethroned the two-time champion Oilers, 20–17, in a double-overtime contest that was, at the time, professional football's longest-ever game.


title: American Football League

text: In 1963, the Texans became the second AFL team to move to a new city. Lamar Hunt felt that despite winning the league championship in 1962, the Texans could not sufficiently profit in the same market as the Dallas Cowboys, which entered the NFL as an expansion franchise in 1960. After meetings with New Orleans, Atlanta, and Miami, Hunt announced on May 22 that the Texans' new home would be Kansas City, Missouri. Kansas City mayor Harold Roe Bartle (nicknamed "Chief") was instrumental in his city's success in attracting the team. Partly to honor Bartle, the franchise officially became the Kansas City Chiefs on May 26.


title: American Football League

text: The San Diego Chargers, under head coach Sid Gillman, won a decisive 51–10 victory over the Boston Patriots for the 1963 AFL Championship. Confident that his team was capable of beating the NFL-champion Chicago Bears (he had the Chargers' rings inscribed with the phrase "World Champions"), Gillman approached NFL Commissioner Pete Rozelle and proposed a final championship game between the two teams. Rozelle declined the offer; however, the game would be instituted three seasons later.


title: American Football League

text: A series of events throughout the next few years demonstrated the AFL's ability to achieve a greater level of equality with the NFL. On January 29, 1964, the AFL signed a lucrative $36 million television contract with NBC (beginning in the 1965 season), which gave the league money it needed to compete with the NFL for players. Pittsburgh Steelers owner Art Rooney was quoted as saying to NFL Commissioner Pete Rozelle after receiving the news of the AFL's new TV deal that, "They don't have to call us 'Mister' anymore". A single-game attendance record was set on November 8, 1964, when 61,929 fans packed Shea Stadium to watch the New York Jets and Buffalo Bills.


title: American Football League

text: The bidding war for players between the AFL and NFL escalated in 1965. The Chiefs drafted University of Kansas star Gale Sayers in the first round of the 1965 AFL draft (held November 28, 1964), while the Chicago Bears did the same in the NFL draft. Sayers eventually signed with the Bears. A similar situation occurred when the New York Jets and the NFL's St. Louis Cardinals both drafted University of Alabama quarterback Joe Namath. In what was viewed as a key victory for the AFL, Namath signed a $427,000 contract with the Jets on January 2, 1965 (the deal included a new car). It was the highest amount of money ever paid to a collegiate football player, and is cited as the strongest contributing factor to the eventual merger between the two leagues.


title: American Football League

text: After the 1963 season, the Newark Bears of the Atlantic Coast Football League expressed interest in joining the AFL; concerns over having to split the New York metro area with the still-uncertain Jets were a factor in the Bears' bid being rejected. In 1965, Milwaukee officials tried to lure an expansion team to play at Milwaukee County Stadium where the Green Bay Packers had played parts of their home schedule after an unsuccessful attempt to lure the Packers there full-time, but Packers head coach Vince Lombardi invoked the team's exclusive lease, and additionally, signed an extension to keep some home games in Milwaukee until 1976. In early 1965, the AFL awarded its first expansion team to Rankin Smith of Atlanta. The NFL quickly counteroffered Smith a franchise, which Smith accepted; the Atlanta Falcons began play as an NFL franchise for the 1966 season. In March 1965, Joe Robbie had met with Commissioner Foss to inquire about an expansion franchise for Miami. On May 6, after Atlanta's exit, Robbie secured an agreement with Miami mayor Robert King High to bring a team to Miami. League expansion was approved at a meeting held on June 7, and on August 16 the AFL's ninth franchise was officially awarded to Robbie and television star Danny Thomas. The Miami Dolphins joined the league for a fee of $7.5 million and started play in the AFL's Eastern Division in 1966. The AFL also planned to add two more teams by 1967.


title: American Football League

text: In 1966, the rivalry between the AFL and NFL reached an all-time peak. On April 7, Joe Foss resigned as AFL commissioner. His successor was Oakland Raiders head coach and general manager Al Davis, who had been instrumental in turning around the fortunes of that franchise. That following May, Wellington Mara, owner of the NFL's New York Giants, broke a "gentleman's agreement" against signing another league's players and lured kicker Pete Gogolak away from the AFL's Buffalo Bills. In response to the Gogolak signing and no longer content with trying to outbid the NFL for college talent, the AFL under Davis began to also recruit players already on NFL squads. Davis's strategy focused on quarterbacks in particular, and in two months he persuaded seven NFL quarterbacks to sign with the AFL. Although Davis's intention was to help the AFL win the bidding war, some AFL and NFL owners saw the escalation as detrimental to both leagues. Alarmed with the rate of spending in the league, Hilton Hotels forced Barron Hilton to relinquish his stake in the Chargers as a condition of maintaining his leadership role with the hotel chain.


title: American Football League

text: The same month Davis was named commissioner, several NFL owners, headed by Dallas Cowboys general manager Tex Schramm, secretly approached Lamar Hunt and other AFL owners and started negotiations with the AFL to merge. A series of secret meetings commenced in Dallas to discuss the concerns of both leagues over rapidly increasing player salaries, as well as the practice of player poaching. Hunt and Schramm completed the basic groundwork for a merger of the two leagues by the end of May, and on June 8, 1966, the merger was officially announced. Under the terms of the agreement, the two leagues would hold a common player draft. The agreement also called for a title game to be played between the champions of the respective leagues. The two leagues would be fully merged by 1970, NFL commissioner Pete Rozelle would remain as commissioner of the merged league, which would be named the NFL. Additional expansion teams would eventually be awarded by 1970 or soon thereafter to bring it to a 28-team league. (The additional expansion would not happen until 1976.) The AFL also agreed to pay indemnities of $18 million to the NFL over 20 years. In protest, Davis resigned as AFL commissioner on July 25 rather than remain until the completion of the merger, and Milt Woodard was named president of the AFL, with the "commissioner" title vacated because of Rozelle's expanded role.


title: American Football League

text: On January 15, 1967, the first-ever championship game between the two separate professional football leagues, the "AFL-NFL World Championship Game" (retroactively referred to as Super Bowl I), was played in Los Angeles. After a close first half, the NFL champion Green Bay Packers overwhelmed the AFL champion Kansas City Chiefs, 35–10. The loss reinforced for many the notion that the AFL was an inferior league. Packers head coach Vince Lombardi stated after the game, "I do not think they are as good as the top teams in the National Football League."


title: American Football League

text: The second AFL-NFL Championship (Super Bowl II) yielded a similar result. The Oakland Raiders—who had easily beaten the Houston Oilers to win their first AFL championship—were overmatched by the Packers, 33–14. The more experienced Packers capitalized on a number of Raiders miscues and never trailed. Green Bay defensive tackle Henry Jordan offered a compliment to Oakland and the AFL, when he said, "... the AFL is becoming much more sophisticated on offense. I think the league has always had good personnel, but the blocks were subtler and better conceived in this game."


title: American Football League

text: The AFL added its tenth and final team on May 24, 1967, when it awarded the league's second expansion franchise to an ownership group from Cincinnati, Ohio, headed by NFL legend Paul Brown. Although Brown had intended to join the NFL, he agreed to join the AFL when he learned that his team would be included in the NFL once the merger was completed. The Cincinnati Bengals began play in the 1968 season, finishing last in the Western Division.


title: American Football League

text: While many AFL players and observers believed their league was the equal of the NFL, their first two Super Bowl performances did nothing to prove it. However, on November 17, 1968, when NBC cut away from a game between the Jets and Raiders to air the children's movie "Heidi", the ensuing uproar helped disprove the notion that fans still considered the AFL an inferior product. The perception of AFL inferiority forever changed on January 12, 1969, when the AFL Champion New York Jets shocked the heavily favored NFL Champion Baltimore Colts in Super Bowl III. The Colts, who entered the contest favored by as many as 18 points, had completed the 1968 NFL season with a 13–1 record, and won the NFL title with a convincing 34–0 win over the Cleveland Browns. Led by their stalwart defense—which allowed a record-low 144 points—the 1968 Colts were considered one of the best-ever NFL teams.


title: American Football League

text: By contrast, the Jets had allowed 280 points, the highest total for any division winner in the two leagues. They had also only narrowly beaten the favored Oakland Raiders 27–23 in the AFL championship game. Jets quarterback Joe Namath recalled that in the days leading up to the game, he grew increasingly angry when told New York had no chance to beat Baltimore. Three days before the game, a frustrated Namath responded to a heckler at the Touchdown Club in Miami by declaring, "We're going to win Sunday, I'll guarantee you."


title: American Football League

text: Namath and the Jets made good on his guarantee as they held the Colts scoreless until late in the fourth quarter. The Jets won, 16–7, in what is considered one of the greatest upsets in American sports history. With the win, the AFL finally achieved parity with the NFL and legitimized the merger of the two leagues. That notion was reinforced one year later in Super Bowl IV, when the AFL champion Kansas City Chiefs upset the NFL champion Minnesota Vikings, 23–7, in the last championship game to be played between the two leagues. The Vikings, favored by 12½ points, were held to just 67 rushing yards.


title: American Football League

text: The last game in AFL history was the AFL All-Star Game, held in Houston's Astrodome on January 17, 1970. The Western All-Stars, led by Chargers quarterback John Hadl, defeated the Eastern All-Stars, 26–3. Buffalo rookie running back O. J. Simpson carried the ball for the last play in AFL history. Hadl was named the game's Most Valuable Player.


title: American Football League

text: Prior to the start of the 1970 NFL season, the merged league was organized into two conferences of three divisions each. All ten AFL teams made up the bulk of the new American Football Conference. To avoid having an inequitable number of teams in each conference, the leagues voted to move three NFL teams to the AFC. Motivated by the prospect of an intrastate rivalry with the Bengals as well as by personal animosity toward Paul Brown, Cleveland Browns owner Art Modell quickly offered to include his team in the AFC. He helped persuade the Pittsburgh Steelers (the Browns' archrivals) and Baltimore Colts (who shared the Baltimore-Washington market with the Washington Redskins) to follow suit, and each team received US$3 million to make the switch. The remaining 13 NFL teams became part of the National Football Conference.


title: American Football League

text: Pro Football Hall of Fame receiver Charlie Joiner, who started his career with the Houston Oilers (1969), was the last AFL player active in professional football, retiring after the 1986 season, when he played for the San Diego Chargers.


title: American Football League

text: The American Football League stands as the only professional football league to successfully compete against the NFL. When the two leagues merged in 1970, all ten AFL franchises and their statistics became part of the new NFL. Every other professional league that had competed against the NFL before the AFL–NFL merger had folded completely: the three previous leagues named "American Football League" and the All-America Football Conference. From an earlier AFL (1936–1937), only the Cleveland Rams (now the Los Angeles Rams) joined the NFL and are currently operating, as are the Cleveland Browns and the San Francisco 49ers from the AAFC. A third AAFC team, the Baltimore Colts (not related to the 1953–1983 Baltimore Colts or to the current Indianapolis Colts franchise), played only one year in the NFL, disbanding at the end of the 1950 season. The league resulting from the merger was a 26-team juggernaut (since expanded to 32) with television rights covering all of the Big Three television networks and teams in close proximity to almost all of the top 40 metropolitan areas, a fact that has precluded any other competing league from gaining traction since the merger; failed attempts to mimic the AFL's success included the World Football League (1974–75), United States Football League (1983–85), the United Football League (2009–2012) and the AAF (2019), and two iterations of the XFL (2001 and 2020).


title: American Football League

text: The AFL was also the most successful of numerous upstart leagues of the 1960s and 1970s that attempted to challenge a major professional league's dominance. All nine teams that were in the AFL at the time the merger was agreed upon were accepted into the league intact (as was the tenth team added between the time of the merger's agreement and finalization), and none of the AFL's teams have ever folded. For comparison, the World Hockey Association (1972–79) managed to have four of its six remaining teams merged into the National Hockey League, which actually caused the older league to contract a franchise, but WHA teams were forced to disperse the majority of their rosters and restart as expansion teams. The merged WHA teams were also not financially sound (in large part from the hefty expansion fees the NHL imposed on them), and three of the four were forced to relocate within 20 years. Like the WHA, The American Basketball Association (1967–76) also managed to have only four of its teams merged into the National Basketball Association, and the rest of the league was forced to fold. Both the WHA and ABA lost several teams to financial insolvency over the course of their existences. The Continental League, a proposed third league for Major League Baseball that was to begin play in 1961, never played a single game, largely because MLB responded to the proposal by expanding to four of that league's proposed cities. Historically, the only other professional sports league in the United States to exhibit a comparable level of franchise stability from its inception was the American League of Major League Baseball, which made its debut in the early 20th century.


title: American Football League

text: The NFL adopted some of the innovations introduced by the AFL immediately and a few others in the years following the merger. One was including the names on player jerseys. The older league also adopted the practice of using the stadium scoreboard clocks to keep track of the official game time, instead of just having a stopwatch used by the referee. The AFL played a 14-game schedule for its entire existence, starting in 1960. The NFL, which had played a 12-game schedule since 1947, changed to a 14-game schedule in 1961, a year after the American Football League instituted it. The AFL also introduced the two-point conversion to professional football 34 years before the NFL instituted it in 1994 (college football had adopted the two-point conversion in the late 1950s). All of these innovations pioneered by the AFL, including its more exciting style of play and colorful uniforms, have essentially made today's professional football more like the AFL than like the old-line NFL. The AFL's challenge to the NFL also laid the groundwork for the Super Bowl, which has become the standard for championship contests in the United States of America.


title: American Football League

text: The NFL also adapted how the AFL used the growing power of televised football games, which were bolstered with the help of major network contracts (first with ABC and later with NBC). With that first contract with ABC, the AFL adopted the first-ever cooperative television plan for professional football, in which the proceeds were divided equally among member clubs. It featured many outstanding games, such as the classic 1962 double-overtime American Football League championship game between the Dallas Texans and the defending champion Houston Oilers. At the time it was the longest professional football championship game ever played. The AFL also appealed to fans by offering a flashier style of play (just like the ABA in basketball), compared to the more conservative game of the NFL. Long passes ("bombs") were commonplace in AFL offenses, led by such talented quarterbacks as John Hadl, Daryle Lamonica and Len Dawson.


title: American Football League

text: Despite having a national television contract, the AFL often found itself trying to gain a foothold, only to come up against roadblocks. For example, CBS-TV, which broadcast NFL games, ignored and did not report scores from the innovative AFL, on orders from the NFL. It was only after the merger agreement was announced that CBS began to give out AFL scores.


title: American Football League

text: The AFL took advantage of the burgeoning popularity of football by locating teams in major cities that lacked NFL franchises. Hunt's vision not only brought a new professional football league to California and New York, but introduced the sport to Colorado, restored it to Texas and later to fast-growing Florida, as well as bringing it to New England for the first time in 12 years. Buffalo, having lost its original NFL franchise in 1929 and turned down by the NFL at least twice (1940 and 1950) for a replacement, returned to the NFL with the merger. The return of football to Kansas City was the first time that city had seen professional football since the NFL's Kansas City Blues of the 1920s; the arrival of the Chiefs, and the contemporary arrival of the St. Louis Football Cardinals, brought professional football back to Missouri for the first time since the temporary St. Louis Gunners of 1934. St. Louis would later regain an NFL franchise in 1995 with the relocation of the LA Rams to the city. The Rams moved back in 2016.


title: American Football League

text: In the case of the Dallas Cowboys, the NFL had long sought to return to the Dallas area after the Dallas Texans folded in 1952, but was originally met with strong opposition by Washington Redskins owner George Preston Marshall, who had enjoyed a monopoly as the only NFL team to represent the American South. Marshall later changed his position after future-Cowboys owner Clint Murchison bought the rights to Washington's fight song "Hail to the Redskins" and threatened to prevent Marshall from playing it at games. By then, the NFL wanted to quickly award the new Dallas franchise to Murchison so the team could immediately begin play and compete with the AFL's Texans. As a result, the Cowboys played its inaugural season in 1960 without the benefit of the NFL draft. The Texans eventually ceded Dallas to the Cowboys and became the Kansas City Chiefs.


title: American Football League

text: As part of the merger agreement, additional expansion teams would be awarded by 1970 or soon thereafter to bring the league to 28 franchises; this requirement was fulfilled when the Seattle Seahawks and the Tampa Bay Buccaneers began play in 1976. In addition, had it not been for the existence of the Oilers from 1960 to 1996, the Houston Texans also would likely not exist today; the 2002 expansion team restored professional football in Houston after the original charter AFL member Oilers relocated to become the Tennessee Titans.


title: American Football League

text: Kevin Sherrington of "The Dallas Morning News" has argued that the presence of AFL and the subsequent merger radically altered the fortunes of the Pittsburgh Steelers, saving the team "from stinking". Before the merger, the Steelers had long been one of the NFL's worst teams. Constantly lacking the money to build a quality team, the Steelers had only posted eight winning seasons, and just one playoff appearance, since their first year of existence in 1933 until the end of the 1969 season. They also finished with a 1–13 record in 1969, tied with the Chicago Bears for the worst record in the NFL. The $3 million indemnity that the Steelers received for joining the AFC with the rest of the former AFL teams after the merger helped them rebuild into a contender, drafting eventual-Pro Football Hall of Famers like Terry Bradshaw and Joe Greene, and ultimately winning four Super Bowls in the 1970s. Since the 1970 merger, the Steelers have the NFL's highest winning percentage, the most total victories, the most trips to either conference championship game, are tied for the second most trips to the Super Bowl (tied with the Dallas Cowboys and Denver Broncos, trailing only the New England Patriots), and have won six Super Bowl championships, tied with the Patriots for the most in NFL history.


title: American Football League

text: Perhaps the greatest social legacy of the AFL was the domino effect of its policy of being more liberal than the entrenched NFL in offering opportunity for black players. While the NFL was still emerging from thirty years of segregation influenced by Washington Redskins' owner George Preston Marshall, the AFL actively recruited from small and predominantly black colleges. The AFL's color-blindness led not only to the explosion of black talent on the field, but to the eventual entry of blacks into scouting, coordinating, and ultimately head coaching positions, long after the league ceased to exist.


title: American Football League

text: The AFL's free agents came from several sources. Some were players who could not find success playing in the NFL, while another source was the Canadian Football League. In the late 1950s, many players released by the NFL, or un-drafted and unsigned out of college by the NFL, went North to try their luck with the CFL, and later returned to the states to play in the AFL.


title: American Football League

text: In the league's first years, players such as Oilers' George Blanda, Chargers/Bills' Jack Kemp, Texans' Len Dawson, the NY Titans' Don Maynard, Raiders/Patriots/Jets' Babe Parilli, Pats' Bob Dee proved to be AFL standouts. Other players such as the Broncos' Frank Tripucka, the Pats' Gino Cappelletti, the Bills' Cookie Gilchrist and the Chargers' Tobin Rote, Sam DeLuca and Dave Kocourek also made their mark to give the fledgling league badly needed credibility. Rounding out this mix of potential talent were the true "free agents", the walk-ons and the "wanna-be's", who tried out in droves for the chance to play professional American football.


title: American Football League

text: After the AFL–NFL merger agreement in 1966, and after the AFL's Jets defeated an extremely strong Baltimore Colts team, a popular misconception fostered by the NFL and spread by media reports was that the AFL defeated the NFL because of the Common Draft instituted in 1967. This apparently was meant to assert that the AFL could not achieve parity as long as it had to compete with the NFL in the draft. But the 1968 Jets had less than a handful of "common draftees". Their stars were honed in the AFL, many of them since the Titans days.


title: American Football League

text: Players who chose the AFL to develop their talent included Lance Alworth and Ron Mix of the Chargers, who had also been drafted by the NFL's San Francisco 49ers and Baltimore Colts respectively. Both eventually were elected to the Pro Football Hall of Fame after earning recognition during their careers as being among the best at their positions. Among specific teams, the 1964 Buffalo Bills stood out by holding their opponents to a pro football record 913 yards rushing on 300 attempts, while also recording fifty quarterback sacks in a 14-game schedule.


title: American Football League

text: In 2009, a five-part series, "Full Color Football: The History of the American Football League", on the "Showtime Network", refuted many of the long-held misconceptions about the AFL. In it, Abner Haynes tells of how his father forbade him to accept being drafted by the NFL, after drunken scouts from that league had visited the Haynes home; the NFL Cowboys' Tex Schramm is quoted as saying that if his team had ever agreed to play the AFL's Dallas Texans, they would very likely have lost; George Blanda makes a case for more AFL players being inducted to the Pro Football Hall of Fame by pointing out that Hall of Famer Willie Brown was cut by the Houston Oilers because he couldn't cover Oilers flanker Charlie Hennigan in practice. Later, when Brown was with the Broncos, Hennigan needed nine catches in one game against the Broncos to break Lionel Taylor's Professional Football record of 100 catches in one season. Hennigan caught the nine passes and broke the record, even though he was covered by Brown.


title: American Football League

text: The AFL also spawned coaches whose style and techniques have profoundly affected the play of professional football to this day. In addition to AFL greats like Hank Stram, Lou Saban, Sid Gillman and Al Davis were eventual hall of fame coaches such as Bill Walsh, a protégé of Davis with the AFL Oakland Raiders for one season; and Chuck Noll, who worked for Gillman and the AFL LA/San Diego Chargers from 1960 through 1965. Others include Buddy Ryan (AFL's New York Jets), Chuck Knox (Jets), Walt Michaels (Jets), and John Madden (AFL's Oakland Raiders). Additionally, many prominent coaches began their pro football careers as players in the AFL, including Sam Wyche (Cincinnati Bengals), Marty Schottenheimer (Buffalo Bills), Wayne Fontes (Jets), and two-time Super Bowl winner Tom Flores (Oakland Raiders). Flores also has a Super Bowl ring as a player (1969 Kansas City Chiefs).


title: American Football League

text: As the influence of the AFL continues through the present, the 50th anniversary of its launch was celebrated during 2009. The season-long celebration began in August with the 2009 Pro Football Hall of Fame Game in Canton, Ohio, between two AFC teams (as opposed to the AFC-vs-NFC format the game first adopted in 1971). The opponents were two of the original AFL franchises, the Buffalo Bills and Tennessee Titans (the former Houston Oilers). Bills' owner Ralph C. Wilson Jr. (a 2009 Hall of Fame inductee) and Titans' owner Bud Adams were the only surviving members of the Foolish Club at the time (both are now deceased; Wilson's estate sold the team in 2014), the eight original owners of AFL franchises. (As of the season, the Titans and Chiefs are still owned by descendants of the original eight owners.)


title: American Football League

text: The Hall of Fame Game was the first of several "Legacy Weekends", during which each of the "original eight" AFL teams sported uniforms from their AFL era. Each of the 8 teams took part in at least two such "legacy" games. On-field officials also wore red-and-white-striped AFL uniforms during these games.


title: American Football League

text: In the fall of 2009, the Showtime pay-cable network premiered "Full Color Football: The History of the American Football League", a 5-part documentary series produced by NFL Films that features vintage game film and interviews as well as more recent interviews with those associated with the AFL.


title: American Football League

text: The NFL sanctioned a variety of ""Legacy"" gear to celebrate the AFL anniversary, such as "throwback" jerseys, T-shirts, signs, pennants and banners, including items with the logos and colors of the Dallas Texans, Houston Oilers, and New York Titans, the three of the Original Eight AFL teams which have changed names or venues. A December 5, 2009, story by Ken Belson in "The New York Times" quotes league officials as stating that AFL ""Legacy"" gear made up twenty to thirty percent of the league's annual $3 billion merchandise income. Fan favorites were the Denver Broncos' vertically striped socks, which could not be re-stocked quickly enough.


title: American Football League

text: Today, two of the NFL's eight divisions are composed entirely of former AFL teams, the AFC West (Broncos, Chargers, Chiefs, and Raiders) and the AFC East (Bills, Dolphins, Jets, and Patriots). Additionally, the Bengals now play in the AFC North and the Tennessee Titans (formerly the Oilers) play in the AFC South.


title: American Football League

text: Former stadiums: Oakland–Alameda County Coliseum, Los Angeles Memorial Coliseum, Fenway Park, Nickerson Field, Alumni Stadium, Nippert Stadium, the Cotton Bowl, Balboa Stadium and Kezar Stadium), still standing but currently vacant (Houston Astrodome), or demolished.


title: American Football League

text: From 1960 to 1968, the AFL determined its champion via a single-elimination playoff game between the winners of its two divisions. The home teams alternated each year by division, so in 1968 the Jets hosted the Raiders, even though Oakland had a better record (this was changed in 1969). In 1963, the Buffalo Bills and Boston Patriots finished tied with identical records of 7–6–1 in the AFL East Division. There was no tie-breaker protocol in place, so a one-game playoff was held in War Memorial Stadium in December. The visiting Patriots defeated the host Bills 26–8. The Patriots traveled to San Diego as the Chargers completed a three-game season sweep over the weary Patriots with a 51–10 victory. A similar situation occurred in the 1968 season, when the Oakland Raiders and the Kansas City Chiefs finished the regular season tied with identical records of 12–2 in the AFL West Division. The Raiders beat the Chiefs 41–6 in a division playoff to qualify for the AFL Championship Game. In 1969, the final year of the independent AFL, Professional Football's first "wild card" playoffs were conducted. A four-team playoff was held, with the second-place teams in each division playing the winner of the other division. The Chiefs upset the Raiders in Oakland 17–7 in the league's Championship, the final AFL game played. The Kansas City Chiefs were the first Super Bowl champion to win two road playoff games and the first wildcard team to win the Super Bowl, although the term "wildcard" was coined by the media, and not used officially until several years later.


title: American Football League

text: The AFL did not play an All-Star game after its first season in 1960, but did stage All-Star games for the 1961 through 1969 seasons. All-Star teams from the Eastern and Western divisions played each other after every season except 1965. That season, the league champion Buffalo Bills played all-stars from the other teams.


title: American Football League

text: After the 1964 season, the AFL All-Star game had been scheduled for early 1965 in New Orleans' Tulane Stadium. After numerous black players were refused service by a number of area hotels and businesses, black and white players alike called for a boycott. Led by Bills players such as Cookie Gilchrist, the players successfully lobbied to have the game moved to Houston's Jeppesen Stadium.


title: American Football League

text: The following is a sample of some records set during the existence of the league. The NFL considers AFL statistics and records equivalent to its own.


title: Arithmetic logic unit

text: In computing, an arithmetic logic unit (ALU) is a combinational digital circuit that performs arithmetic and bitwise operations on integer binary numbers. This is in contrast to a floating-point unit (FPU), which operates on floating point numbers. It is a fundamental building block of many types of computing circuits, including the central processing unit (CPU) of computers, FPUs, and graphics processing units (GPUs).


title: Arithmetic logic unit

text: The inputs to an ALU are the data to be operated on, called operands, and a code indicating the operation to be performed; the ALU's output is the result of the performed operation. In many designs, the ALU also has status inputs or outputs, or both, which convey information about a previous operation or the current operation, respectively, between the ALU and external status registers.


title: Arithmetic logic unit

text: An ALU has a variety of input and output nets, which are the electrical conductors used to convey digital signals between the ALU and external circuitry. When an ALU is operating, external circuits apply signals to the ALU inputs and, in response, the ALU produces and conveys signals to external circuitry via its outputs.


title: Arithmetic logic unit

text: A basic ALU has three parallel data buses consisting of two input operands ("A" and "B") and a result output ("Y"). Each data bus is a group of signals that conveys one binary integer number. Typically, the A, B and Y bus widths (the number of signals comprising each bus) are identical and match the native word size of the external circuitry (e.g., the encapsulating CPU or other processor).


title: Arithmetic logic unit

text: The "opcode" input is a parallel bus that conveys to the ALU an operation selection code, which is an enumerated value that specifies the desired arithmetic or logic operation to be performed by the ALU. The opcode size (its bus width) determines the maximum number of distinct operations the ALU can perform; for example, a four-bit opcode can specify up to sixteen different ALU operations. Generally, an ALU opcode is not the same as a machine language opcode, though in some cases it may be directly encoded as a bit field within a machine language opcode.


title: Arithmetic logic unit

text: The status outputs are various individual signals that convey supplemental information about the result of the current ALU operation. General-purpose ALUs commonly have status signals such as:


title: Arithmetic logic unit

text: Upon completion of each ALU operation, the status output signals are usually stored in external registers to make them available for future ALU operations (e.g., to implement multiple-precision arithmetic) or for controlling conditional branching. The collection of bit registers that store the status outputs are often treated as a single, multi-bit register, which is referred to as the "status register" or "condition code register".


title: Arithmetic logic unit

text: The status inputs allow additional information to be made available to the ALU when performing an operation. Typically, this is a single "carry-in" bit that is the stored carry-out from a previous ALU operation.


title: Arithmetic logic unit

text: An ALU is a combinational logic circuit, meaning that its outputs will change asynchronously in response to input changes. In normal operation, stable signals are applied to all of the ALU inputs and, when enough time (known as the "propagation delay") has passed for the signals to propagate through the ALU circuitry, the result of the ALU operation appears at the ALU outputs. The external circuitry connected to the ALU is responsible for ensuring the stability of ALU input signals throughout the operation, and for allowing sufficient time for the signals to propagate through the ALU before sampling the ALU result.


title: Arithmetic logic unit

text: In general, external circuitry controls an ALU by applying signals to its inputs. Typically, the external circuitry employs sequential logic to control the ALU operation, which is paced by a clock signal of a sufficiently low frequency to ensure enough time for the ALU outputs to settle under worst-case conditions.


title: Arithmetic logic unit

text: For example, a CPU begins an ALU addition operation by routing operands from their sources (which are usually registers) to the ALU's operand inputs, while the control unit simultaneously applies a value to the ALU's opcode input, configuring it to perform addition. At the same time, the CPU also routes the ALU result output to a destination register that will receive the sum. The ALU's input signals, which are held stable until the next clock, are allowed to propagate through the ALU and to the destination register while the CPU waits for the next clock. When the next clock arrives, the destination register stores the ALU result and, since the ALU operation has completed, the ALU inputs may be set up for the next ALU operation.


title: Arithmetic logic unit

text: A number of basic arithmetic and bitwise logic functions are commonly supported by ALUs. Basic, general purpose ALUs typically include these operations in their repertoires:


title: Arithmetic logic unit

text: ALU shift operations cause operand A (or B) to shift left or right (depending on the opcode) and the shifted operand appears at Y. Simple ALUs typically can shift the operand by only one bit position, whereas more complex ALUs employ barrel shifters that allow them to shift the operand by an arbitrary number of bits in one operation. In all single-bit shift operations, the bit shifted out of the operand appears on carry-out; the value of the bit shifted into the operand depends on the type of shift.


title: Arithmetic logic unit

text: In integer arithmetic computations, multiple-precision arithmetic is an algorithm that operates on integers which are larger than the ALU word size. To do this, the algorithm treats each operand as an ordered collection of ALU-size fragments, arranged from most-significant (MS) to least-significant (LS) or vice versa. For example, in the case of an 8-bit ALU, the 24-bit integer codice_1 would be treated as a collection of three 8-bit fragments: codice_2 (MS), codice_3, and codice_4 (LS). Since the size of a fragment exactly matches the ALU word size, the ALU can directly operate on this "piece" of operand.


title: Arithmetic logic unit

text: The algorithm uses the ALU to directly operate on particular operand fragments and thus generate a corresponding fragment (a "partial") of the multi-precision result. Each partial, when generated, is written to an associated region of storage that has been designated for the multiple-precision result. This process is repeated for all operand fragments so as to generate a complete collection of partials, which is the result of the multiple-precision operation.


title: Arithmetic logic unit

text: In arithmetic operations (e.g., addition, subtraction), the algorithm starts by invoking an ALU operation on the operands' LS fragments, thereby producing both a LS partial and a carry out bit. The algorithm writes the partial to designated storage, whereas the processor's state machine typically stores the carry out bit to an ALU status register. The algorithm then advances to the next fragment of each operand's collection and invokes an ALU operation on these fragments along with the stored carry bit from the previous ALU operation, thus producing another (more significant) partial and a carry out bit. As before, the carry bit is stored to the status register and the partial is written to designated storage. This process repeats until all operand fragments have been processed, resulting in a complete collection of partials in storage, which comprise the multi-precision arithmetic result.


title: Arithmetic logic unit

text: In multiple-precision shift operations, the order of operand fragment processing depends on the shift direction. In left-shift operations, fragments are processed LS first because the LS bit of each partial—which is conveyed via the stored carry bit—must be obtained from the MS bit of the previously left-shifted, less-significant operand. Conversely, operands are processed MS first in right-shift operations because the MS bit of each partial must be obtained from the LS bit of the previously right-shifted, more-significant operand.


title: Arithmetic logic unit

text: In bitwise logical operations (e.g., logical AND, logical OR), the operand fragments may be processed in any arbitrary order because each partial depends only on the corresponding operand fragments (the stored carry bit from the previous ALU operation is ignored).


title: Arithmetic logic unit

text: Although an ALU can be designed to perform complex functions, the resulting higher circuit complexity, cost, power consumption and larger size makes this impractical in many cases. Consequently, ALUs are often limited to simple functions that can be executed at very high speeds (i.e., very short propagation delays), and the external processor circuitry is responsible for performing complex functions by orchestrating a sequence of simpler ALU operations.


title: Arithmetic logic unit

text: For example, computing the square root of a number might be implemented in various ways, depending on ALU complexity:


title: Arithmetic logic unit

text: The implementations above transition from fastest and most expensive to slowest and least costly. The square root is calculated in all cases, but processors with simple ALUs will take longer to perform the calculation because multiple ALU operations must be performed.


title: Arithmetic logic unit

text: An ALU is usually implemented either as a stand-alone integrated circuit (IC), such as the 74181, or as part of a more complex IC. In the latter case, an ALU is typically instantiated by synthesizing it from a description written in VHDL, Verilog or some other hardware description language. For example, the following VHDL code describes a very simple 8-bit ALU:


title: Arithmetic logic unit

text: Mathematician John von Neumann proposed the ALU concept in 1945 in a report on the foundations for a new computer called the EDVAC.


title: Arithmetic logic unit

text: The cost, size, and power consumption of electronic circuitry was relatively high throughout the infancy of the information age. Consequently, all serial computers and many early computers, such as the PDP-8, had a simple ALU that operated on one data bit at a time, although they often presented a wider word size to programmers. One of the earliest computers to have multiple discrete single-bit ALU circuits was the 1948 Whirlwind I, which employed sixteen such "math units" to enable it to operate on 16-bit words.


title: Arithmetic logic unit

text: In 1967, Fairchild introduced the first ALU implemented as an integrated circuit, the Fairchild 3800, consisting of an eight-bit ALU with accumulator. Other integrated-circuit ALUs soon emerged, including four-bit ALUs such as the Am2901 and 74181. These devices were typically "bit slice" capable, meaning they had "carry look ahead" signals that facilitated the use of multiple interconnected ALU chips to create an ALU with a wider word size. These devices quickly became popular and were widely used in bit-slice minicomputers.


title: Arithmetic logic unit

text: Microprocessors began to appear in the early 1970s. Even though transistors had become smaller, there was often insufficient die space for a full-word-width ALU and, as a result, some early microprocessors employed a narrow ALU that required multiple cycles per machine language instruction. Examples of this includes the popular Zilog Z80, which performed eight-bit additions with a four-bit ALU. Over time, transistor geometries shrank further, following Moore's law, and it became feasible to build wider ALUs on microprocessors.


title: Arithmetic logic unit

text: Modern integrated circuit (IC) transistors are orders of magnitude smaller than those of the early microprocessors, making it possible to fit highly complex ALUs on ICs. Today, many modern ALUs have wide word widths, and architectural enhancements such as barrel shifters and binary multipliers that allow them to perform, in a single clock cycle, operations that would have required multiple operations on earlier ALUs.


title: Arithmetic logic unit

text: ALUs can be realized as mechanical, electro-mechanical or electronic circuits and, in recent years, research into biological ALUs has been carried out (e.g., actin-based).


title: Moon River

text: "Moon River" is a song composed by Henry Mancini with lyrics by Johnny Mercer. It was originally performed by Audrey Hepburn in the 1961 movie "Breakfast at Tiffany's", winning an Academy Award for Best Original Song. The song also won the 1962 Grammy Awards for Record of the Year and Song of the Year.


title: Moon River

text: The song has been recorded by many other artists. It became the theme song for Andy Williams, who first recorded it in 1962 (and performed it at the Academy Awards ceremony that year). He sang the first eight bars of the song at the beginning of each episode of his eponymous television show and named his production company and venue in Branson, Missouri, after it; his autobiography is called ""Moon River" and Me". Williams' version was never released as a single, but it charted as an LP track that he recorded for Columbia on a hit album of 1962, "Moon River and Other Great Movie Themes". In 2022, Williams' rendition of the song was selected for preservation in the Library of Congress.


title: Moon River

text: The song's success was responsible for relaunching Mercer's career as a songwriter, which had stalled in the mid-1950s because rock and roll had replaced jazz standards as the popular music of the time. The song's popularity is such that it has been used as a test sample in a study on people's memories of popular songs. Comments about the lyrics have noted that they are particularly reminiscent of Mercer's youth in the southern United States and his longing to expand his horizons. Robert Wright wrote in "The Atlantic Monthly", "This is a love sung <nowiki>[</nowiki>"sic"<nowiki>]</nowiki> to wanderlust. Or a romantic song in which the romantic partner is the idea of romance." An inlet near Savannah, Georgia, Johnny Mercer's hometown, was named Moon River in honor of him and this song.


title: Moon River

text: Mercer and Mancini wrote the song for Audrey Hepburn to sing in the film "Breakfast at Tiffany's". The lyrics, written by Mercer, are reminiscent of his childhood in Savannah, Georgia, including its waterways. As a child, he had picked huckleberries in summer, and he connected them with a carefree childhood and Mark Twain's "Huckleberry Finn". Although an instrumental version is played over the film's opening titles, the lyrics are first heard in a scene where Paul "Fred" Varjak (George Peppard) discovers Holly Golightly (Hepburn) singing the song, accompanying herself on the guitar while sitting on the fire escape outside their apartments.