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Great shift all over the world seeing deafness as an illness instead of a product of being dumb (1 Jan 1720 Jahr – 1 Jan 1850 Jahr)

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The Evolution of Sign Language

ByDavid Heineman

5 Nov 2017

0

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631

Datum:

1 Jan 1720 Jahr

1 Jan 1850 Jahr

~ 130 years

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