Slavery in the United States Slavery in the United States Slavery in the United States was the legal institution of human chattel enslavement, primarily of Africans and African Americans, that existed in the United States of America in the 18th and 19th centuries. Slavery had been practiced in British America from early colonial days, and was legal in all Thirteen Colonies at the time of the Declaration of Independence in 1776. It lasted in about half the states until 1865, when it was prohibited nationally by the Thirteenth Amendment. As an economic system, slavery was largely replaced by sharecropping. By the time of the American
United States Declaration of Independence followed, many stories about the writing and signing of the document were published for the first time. When interest in the Declaration was revived, the sections that were most important in 1776 were no longer relevant: the announcement of the independence of the United States and the grievances against King George. But the second paragraph was applicable long after the war had ended, with its talk of self-evident truths and unalienable rights. The Constitution and the Bill of Rights lacked sweeping statements about rights and equality, and advocates of groups with grievances turned to the Declaration for support. Starting in