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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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27 oct 1680 año - George Dalgarno publsihed Didascalocophus, showing a alphabet where pointing to different areas of the hand meant different letters
Añadido al timeline:
The Evolution of Sign Language
By
David Heineman
5 nov 2017
0
0
631
fecha:
27 oct 1680 año
Ahora mismo
~ 345 years ago
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