The 13th Amendment to the United States Constitution, ratified just months after the end of the American Civil War, abolished slavery and involuntary servitude—except as a punishment for a crime—in the entire United States. As passed by Congress on January 31, 1865, and ratified by the states on December 6, 1865, the full text of 13th Amendment reads:
Section One
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.
Section Two
Congress shall have power to enforce this article by appropriate legislation.