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31 dez 1905 ano - Research on genetic cause of feeble mindedness started
Descrição:
In 1906 Goddard began his research on the genetic causes of feeble mindedness
Adicionado na linha do tempo:
13 dez 2017
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455
History Timeline for the Disabled
Data:
31 dez 1905 ano
Agora
~ 118 years ago