The 13th Amendment
The 13th Amendment passed Congress on January 31, 1865. On December 6, 1865, the required amount of states ratified this amendment, formally abolishing slavery in America.
For more information and to see the document:
http://www.ourdocuments.gov/doc.php?flash=true&doc=40
For more information and to see the document:
http://www.ourdocuments.gov/doc.php?flash=true&doc=40