Sobre o Sistema Braille
Braille is a universal tactile writing and reading system for visually impaired individuals. It was developed in France by Louis Braille, a young blind, and is based on a military night reading system developed by Charles Barbier. Six embossed dots divided in two collums form 63 different symbols in various idioms, including mathematical and musical symbols. From the invention of the system in 1825, Louis developed studies that resulted in 1837 in the definition of the basic structure of the system. Due to it's efficiency and vast application, the system proved to be the best reading and writing system for blind persons. One of the difficulties of the visually impaired individuals is that people around them donīt know Braille, making written communication dificult. As an affirmative action for the inclusion of the visually impaired in the society, Universidade de Sao Paulo developed Braille Virtual, a on-line course planned to teach Braille to those who can see and establish a complete communication with visually impaired individuals. See the method