// todo need optimize like in event.jsp. Add indexing or not indexing this page. First IQ testing and IQ Classification Scales (jan 1, 1905 – jun 8, 1910) (Timeline)
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First IQ testing and IQ Classification Scales (jan 1, 1905 – jun 8, 1910)

Added to timeline:

History of Intellectual Disability

ByLori
3 Sep 2018

Date:

jan 1, 1905
jun 8, 1910
~ 5 years and 5 months
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