Braille is the universally accepted system of reading and writing used by those people who are blind. It was originally developed in 1824 by Louis Braille, who was 15 years old at the time. In 1837 a more complete elaboration appeared, and through the years additional systems appeared: the English Braille (which very closely followed the original French Braille); American Braille; and New York Point. Finally, in 1916 English Braille was accepted in the United States as the standard, and as the universal system for the English-speaking world in 1932. The system is based on 63 characters, each of which is made up of one to six embossed dots which is read by touch.
