In the 1830s, Congress forcibly removed these tribes from their ancestral homelands to designated Indian Territory. The migration from these homelands to the designated territory is infamously known as the Trail of Tears. During the American Civil War, some of the tribes supported the Confederates. After the Union victory, the "Five Tribes" ceded all its territory in western Oklahoma. The Muscogee (Creek)'s present boundaries reflect two cessions. In 1856, the Muscogee (Creek) Nation "cede[d]" lands to the Seminoles. In 1866, Congress signed the Treaty with the Creek where the Muscogee (Creek) Nation "cede[d] ... to the United States" lands in return for $975,168.