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
Economic history of the United Kingdom manufactured goods were sold around the world, and raw materials and luxury goods were imported to Britain. During the Industrial Revolution the empire became less important and less well-regarded. The British defeat in the American War of Independence (1775–1783) deprived it of its largest and most developed colonies. This loss brought a realisation that colonies were not particularly economically beneficial to the home economy. It was realised that the costs of occupation of colonies often exceeded the financial return to the taxpayer. In other words, formal empire afforded no great economic benefit when trade would continue whether the overseas political