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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 set 1620 ano – 8 set 1720 ano)
Adicionado na linha do tempo:
The Evolution of Sign Language
By
David Heineman
5 nov 2017
0
0
626
Data:
8 set 1620 ano
8 set 1720 ano
~ 100 years
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