The Black Belt is a region in the southeastern United States, notably characterized by its rich, dark soil and a historical reliance on cotton agriculture. This area became a significant center for cotton production during the 19th century, which was propelled by the invention of the cotton gin and the demand for cotton in both domestic and international markets. The Black Belt's agricultural economy led to the establishment of large plantations, deeply intertwined with the institution of slavery, as plantation owners sought to maximize profits through extensive cotton cultivation.