Whose work invented Braille?

French educator Louis Braille developed the Braille code after becoming blind at age three. By 1824, while still a teenager, he had created a six-dot raised-cell system that could represent letters, numbers, and later punctuation. The system was inspired in part by a military night-writing code but simplified for reading and writing by touch. Braille revolutionized literacy for blind and visually impaired people around the world. It remains in use today in many languages.