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14 Dez 1810 Jahr - Hauy crea las bases del que ahora conocemos como método Braille (puesto que este lo perfecciona) para ciegos, consistente en letras en relieve.

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Actividad t.1 Maria Olalla Serra

22 Nov 2018

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494

Datum:

14 Dez 1810 Jahr

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~ 215 years ago

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