The Sign Language was invented in 1620 & first book was published by Juan Pablo de Bonet to teach sign language to the deaf. The Sign Language was invented in 1620 when the first book was published by Juan Pablo de Bonet to teach sign language to the deaf.
Sign language is a language used by the deaf for communication. It involves a set of specific hand signals that correlate to words. The use of sign language allows those who cannot hear speech to participate in everyday life by being able to communicate and understand. The first system of hand signals as a language was invented by Juan Pablo de Bonet in 1620. He created the first book with sign language signals for teaching deaf people. American Sign Language. American Sign Language, or ASL became prominent in the 1800's thanks to Thomas Hopkins Gallaudet. He wanted to help Alice Cogswell who was his neighbor's deaf daughter, so he travelled to Europe to study how to communicate with deaf people.  It was long ago that early man used gestures to express himself. He was the first to use sign language. In 1620 Juan Pablo de Bonet was the one to write a book which had the first alphabet system known to man. He used different signs through hand shapes to represent different sounds of speech. Though it came after Bonet’s book but still it was the main cause for the development of deaf schools. In 1771 Abbe Charles Michel de L’Epee found the first school for the deaf in Paris and through the standard sign language created by him, he used to teach them. No one can really pinpoint who invented sign language. According to history, there is no particular known creator of the sign language. Rather, it was more a mixture of various cultures from different countries that had influenced the emergence and promulgation of the sign language through the years. Sign language finally arrived in the United States. This was when Laurent Clerc, a European who taught signing mainly in Europe, established and opened the doors of the first American school for the deaf with Thomas Hopkins Gallaudet. This was opened in 1817 in Hartford, Connecticut. The Invention of Sign Language. No one person invented sign language. It is reasonable to think that sign language was widely used before standardized systems were developed. Deaf people needed a way to communicate with others and many had a set of signs that they used at home to make themselves understood. The first system of hand signals as a language was invented by Juan Pablo de Bonet in 1620. He created the first book with sign language signals for teaching deaf people. Now Deaf people had a set of manual gestures, or signs, they could use for communicating and becoming educated. So you might say it was Juan Pablo Bonet who invented sign language. Then, in France in the 18th century, along came Charles-Michel de l 'Epee. He happened upon two young Deaf sisters who used a sign language to communicate. Charles-Michel de l 'Epee, a religious man, then dedicated himself to the education and salvation of the Deaf. It was not understood then as a language, and Deafness was not well understood. The first notable pioneer, perhaps inventor of sign language is Juan Pablo Bonet. He was a Spanish secretary to a wealthy family. This family had a Deaf son. The Sign Language was invented in 1620 when the first book was published by Juan Pablo de Bonet to teach sign language to the deaf. Bonet published the book on the basis of an Italian physician Girolamo Cardano’s works that learning can be acquired without hearing.  Signing is not only used by the deaf, it is also used by people who can hear, but cannot physically speak. While they use space for grammar in a way that spoken languages do not, sign languages show the same linguistic properties and use the same language faculty as do spoken languages.  Sign language for the deaf was first systematized in France during the 18th century by Abbot Charles-Michel l'Epee. Epée French Sign (LANGUAGE) fsl was brought to The United states in 1816 By Thomas, gallaudet founder of The American school for The deaf In, Hartford. conn French Sign Language (FSL) was brought to the United States in 1816 by Thomas Gallaudet, founder of the American School for the Deaf in Hartford, Conn.
http://wanttoknowit.com/who-invented-sign-language/ http://www.deafwebsites.com/sign-language/history-sign-language.html http://www.whoinvented.org/who-invented-sign-language/ http://www.whoinventedit.net/who-invented-sign-language.html http://wanttoknowit.com/who-invented-sign-language/ http://www.deafedge.com/who-invented-sign-language.html http://www.whenwasitinvented.org/when-was-sign-language-invented/ https://en.wikipedia.org/wiki/Sign_Language http://www.infoplease.com/ipa/A0200808.html
who and when was the sign language invented