When Did The 13th Amendment Go Into Effect?
When Did The 13th Amendment Go Into Effect? Passed by Congress on January 31, 1865, and ratified on December 6, 1865, the 13th amendment abolished slavery in the United States. The 13th amendment, which formally abolished slavery in the United States, passed the Senate on April 8, 1864, and the House on January 31, 1865.