Question

who was Louis braille
what was his contribution to the blind people​

Answer 1

Louis Braille, who was blinded at the age of three, invented the system in 1824 while a student at the Institution Nationale des Jeunes Aveugles (National Institute for Blind Children), Paris. Reading Braille. The Frenchman Valentin Haüy was the first person to emboss paper as a means of reading for the blind

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Answer 2

Explanation:

Louis Braille was a French educator and inventor of a system of reading and writing for use by the blind or visually impaired. His system remains virtually unchanged to this day, and is known worldwide simply as braille.

Although the work of many others contributed to his accomplishment, Louis Braille's invention of a tactile six-dot reading and writing system revolutionized the way blind people perceived and contributed to the world.