 Augustus also continued the shifts on the calendar promoted by Caesar, and the month of August is named after him.Augustus' enlightened rule resulted in a 200 years long peaceful and thriving era for the Empire, known as "Pax Romana".Despite its military strength, the Empire made few efforts to expand its already vast extent; the most notable being the conquest of Britain, begun by emperor Claudius (47), and emperor Trajan's conquest of Dacia (101–102, 105–106).