Braille

Charles Barbier de la Selle an army general came up with a system called night-writing which used twelve raised dot cells to represent the sounds of the words. De la Selle’s system was too complicated to be used by the army but when the general paid a visit to the National Institute for the Blind in Paris to demonstrate his system he met a man named Louis Braille who had been blind from the age of three but badly wanted to learn.

Braille realized that de la Selle’s system didn’t work because the twelve dot symbols were too big for the human finger to touch in one go without moving and so one couldn’t read the symbols quickly enough. Braille had the bright idea of using a six-dot cell instead which was small enough to be “read” in one go.

His idea worked and Braille was born — the first reading system for the blind.

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