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3 jan 1821 ano - Louis Braille invento el código braille

Descrição:

se percató de que su sistema podría ser de mucha utilidad para los limitados visuales, y lo puso en disposición de jóvenes ciegos.

Adicionado na linha do tempo:

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Byandrea
3 set 2018

Data:

3 jan 1821 ano
Agora
~ 203 years ago
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