Slavery occurred in the United States during the 18th and 19th centuries, primarily in the Southern states. Children were also used as slaves, forced to do difficult manual labor like carrying heavy stones under harsh conditions. Most forms of slavery involve perpetual service and obedience to the master, who has complete power over slaves as property. The Civil War and Emancipation Proclamation of 1862 were pivotal events that led to the abolition of slavery in America.