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  Nazis invade the Soviet Union and begin massacres of Jews, including one in Babi Yar, Kiev, in which 33,000 Jews were shot.
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  Deportations from Lodz ghetto to Chelmno extermination camps begin
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  The thousoands of jews at the Warsaw ghetto tagged together and made an uprising against the Nazis and eventually destroyed most of the ghetto
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  Deportations to the Auschwitz-Birkenau Concentration camps begin August 7th and end August 30th-ish.