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1 gen 1876 anni - The Association of Medical Officers of American Institutions for Idiots and Feeble-Minded Persons is formed (which late; in 1933, becomes the American Association on Mental Deficiency, then the American Association on Mental Retardation in 1987). In 2006, it becomes the American Association on Intellectual and Developmental Disabilities.

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History of special education

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12 ago 2019
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1 gen 1876 anni
Adesso
~ 149 years ago
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