Native Americans of the Southeast were described in 1542 as Indians with towns and temples, who farmed.  However, during the Creek War of 1813-1814, their populations were destroyed.
Native Americans living in the Gulf of Mexico had a very complex culture related to that of the Aztecs.  For example, the Seminoles used the conch shell as did the Aztecs.
The rush and discovery of gold forced the removal of most Cherokee to Indian territory by 1839.  A major uprooting took place between 1830-1842, in an episode known as the ‘Trail of Tears’ from the Southeast states to an area west of the Mississippi known as Indian territory.  This area was formally so designated until its admission to the Union as the state of Oklahoma in 1907.
Some displaced  Creeks joined relatives in Florida and formed the Seminole Nation.  Other Southeast Nations include: Choctaw, Cherokee, Chickasaw,, along with the Seminoles.