History of slavery in Alabama
During the colonial era, the Indian slavery in Alabama soon became surpassed by industrial-scale plantation slavery.
Following the patenting of the cotton gin, the War of 1812, and the defeat and expulsion of the Creek Nation in the 1810s, European-American settlement in Alabama was intensified, as was the presence of slavery on newly established plantations in the territory. Like its neighbors, the Alabama Territory was fertile ground for the surging cotton crop, and soon became one of the major destinations for African-American slaves who were being shipped to the Southeastern United States.
Most of the settlers came from the nearby states of North Carolina, South Carolina, and Georgia, attracted by the prospect of fertile land for cotton in the Tennessee Valley and Black Belt region. The plantation system was solidified throughout the first half of the 19th century, and Alabama was one of the first seven states to withdraw from the Union prior to the American Civil War. The U.S. Census taken six months before Alabama's secession showed slaves accounted for 48% of Alabama's population, and free Blacks 3%.
Slavery was officially abolished by the Thirteenth Amendment which took effect on December 18, 1865. Slavery had been theoretically abolished by President Abraham Lincoln's Emancipation Proclamation which proclaimed, in 1863, that only slaves located in territories that were in rebellion from the United States were free. Since the U.S. government was not in effective control of many of these territories until later in the war, many of these slaves proclaimed to be free by the Emancipation Proclamation were still held in servitude until those areas came back under Union control.