"The Thirteenth Amendment, passed by Congress on January 31, 1865: usnatarchives:   The news of the Emancipation Proclamation was greeted with joy, but it did not free all the slaves. Because of the limitations of the proclamation, and because it depended on a Union military victory, President Lincoln knew the Emancipation Proclamation would have to be followed by a constitutional amendment. After the Senate passed a bill for an amendment in April 1864, but the House of Representatives did not, Lincoln suggested that the bill be taken up by the Republican Party in its 1864 platform for the upcoming Presidential elections. His efforts met with success when the House passed the bill in January 1865. On February 1, 1865, President Abraham Lincoln approved the Joint Resolution of Congress submitting the proposed amendment to the state legislatures. The necessary number of states ratified it by December 6, 1865. The 13th Amendment to the United States Constitution formally abolished slavery in the United States. It provides that ""Neither slavery nor involuntary servitude, except as a punishment for crime whereof the party shall have been duly convicted, shall exist within the United States, or any place subject to their jurisdiction.""Image: Joint Resolution Proposing the Thirteenth Amendment to the United States Constitution, 01/31/1865–01/31/1865; Enrolled Acts and Resolutions of Congress, 1789–2008; General Records of the United States Government, 1778–2006, Record Group 11; National Archives (National Archives Identifier: 1408764)"
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