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Period: to
1700-1900's
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1900's
depression is hereditaryHH Goddard claimed that the cause of mental illness was hereditary. There was a movement to lock up all people with mental illness so that they did not procreate. -
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1923
History of Education34,000 students with developmental disabilities enrolled in special education classes -
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1960's
Child Development CenterIn the 1960's the Federal government became interested in developmental delayed -
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