Oklahoma was first settled when the United States government consigned the Five Civilized Tribes to the eastern half of what was then a territory. The government promised the tribes that this land would remain theirs forever. The Five Civilized Tribes are the Cherokee, Creek, Seminole, Chickasaw and Choctaw Nations. The law the United States Congress passed to do this was called the Indian Removal Act. This was in 1830. The Trail of Tears took place after the Treaty of... Read more






