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

Added to timeline:

The Evolution of Sign Language

ByDavid Heineman

5 Nov 2017

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0

656

Date:

jan 1, 1720

jan 1, 1850

~ 130 years

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