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jan 8, 1749 - En 1749 • Diderot, publica estudio sobre el comportamiento de los ciegos • Aparece el alfabeto en alto relieve • Valentín Haüy enseña a los invidentes
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Linea del Tiempo - Personas Invidentes.
By
Juan Diaz
10 Oct 2018
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Date:
jan 8, 1749
Now
~ 277 years ago
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