The Cherokee Nation was a legal, autonomous, tribal government in North America recognized from 1794 to 1907. It was often referred to simply as "The Nation" by its inhabitants. The government was effectively disbanded in 1907, after its land rights had been extinguished, prior to the admission of Oklahoma as a state. During the late 20th century, the Cherokee people reorganized, instituting a government with sovereign jurisdiction known as the Cherokee Nation. On July 9, 2020, the United States Supreme Court ruled that the Muscogee (Creek) Nation had never been disestablished in the years before allotment and Oklahoma Statehood.

Indian Territory and the Indian Territories are terms that generally described an evolving land area set aside by the United States government for the relocation of Native Americans who held original Indian title to their land as an independent nation-state. The concept of an Indian territory was an outcome of the U.S. federal government's 18th- and 19th-century policy of Indian removal. After the American Civil War (1861–1865), the policy of the U.S. government was one of assimilation.