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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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Sign language was used by the deaf, but wasn't widely used and varied between people. A larger use was for secret communication (8 sept 1620 año – 8 sept 1720 año)
Añadido al timeline:
The Evolution of Sign Language
By
David Heineman
5 nov 2017
0
0
634
fecha:
8 sept 1620 año
8 sept 1720 año
~ 100 years
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