20th Century Human Experimentation

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    Unit 731

    Unit 731 ranged from 1937 to 1945
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    Nazi Human Experiments

    Nazi Human Experiments ranged from 1939 to 1945
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    Lobotomy

    Lobotomy was popular from the 1940s to mid 1950s
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    Project MKUltra

    From the early 1950s to 1973
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