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Sign language is used by almost every deaf person as a means of communication (14 Feb 1721 Jahr – 14 Feb 2018 Jahr)

Zugefügt zum Band der Zeit:

The Evolution of Sign Language

ByDavid Heineman

5 Nov 2017

0

0

626

Datum:

14 Feb 1721 Jahr

14 Feb 2018 Jahr

~ 297 years

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