Slavery was a major point of contention in the United States for the first-half of the 19th century. During that period, the United States saw several slave revolts, including German Coast Uprising in 1811, Nat Turner's slave rebellion in 1831, the 1842 Slave Revolt in the Cherokee Nation, and John Brown raid in 1859. The long-standing controversy regarding slavery eventually led to the American Civil War. Lasting from 1861 to 1865, the war saw the collapse of the Confederate States of America, as well as the abolition of slavery in the United States. Other slave revolts in North America includes Bussa's rebellion in Barbados. Bussa's revolt in 1816 was an example of a Caribbean slave revolt during the period. In addition to these internal conflicts, intermittent indigenous conflicts continued to persist in the 19th century.