Although slavery continued to persist in some countries after these documents were written--namely, the United States, in which slavery continued until the thirteenth amendment United States of America, January 1,1863.
Although slavery continued to persist in some countries after these documents were written--namely, the United States, in which slavery continued until the Emancipation Proclamation in 1863 "Emancipation Proclamation." United States of America, January 1,1863.