Braille, a tactile writing system for the visually impaired, is named after Louis Braille, a Frenchman who lost his sight and created a system of six raised dots arranged in two parallel rows...
Braille, a tactile writing system for the visually impaired, is named after Louis Braille, a Frenchman who lost his sight and created a system of six raised dots arranged in two parallel rows.When he was 12, he...
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