8 abr 1864 ano - Thirteenth amendment abolished slavery

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The Thirteenth Amendment (Amendment XIII) to the United States Constitution abolished slavery and involuntary servitude, except as punishment for a crime. In Congress, it was passed by the Senate on April 8, 1864, and by the House on January 31, 1865.

https://en.wikipedia.org/wiki/Thirteenth_Amendment_to_the_United_States_Constitution

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