 Complete the following phrase:  The end of the Civil War had a different impact on each of the Five Nations on the Indian Territory. As part of a series of treaties, in 1866 the federal government required Indian nations to emancipate their slaves. Not all of the nations immediately banned the practice, and the eventual demise of slavery came slowly. Three of the five nations abolished slavery at the end of the Civil War, the Choctaw and Chickasaw nations did not. Nations that governed themselves did not have the immediate need to get rid of slavery, thus causing those two nations to be much slower to remove slavery. It was not until the following year that both nations joined a treaty to abolish slavery. Changes, specifically in the Choctaw and Chickasaw Nations, came slowly. Even after the emancipation, the masters were violent and harsh to those previously enslaved to them. Many Native Americans and African Americans struggled to find the correct meaning of equality, freedom, and their relation. This led the topic of race to be a constant narrative in the history of Oklahoma. The people continually struggled to understand citizenship. Throughout the time period of 