The Territory of Oklahoma was an organized incorporated territory of the United States that existed from May 2, 1890, until November 16, 1907, when it was joined with the Indian Territory under a new constitution and admitted to the Union as the state of Oklahoma.
Gravestone of David L. Payne
Image: George Washington Steele (Indiana Congressman, Oklahoma Governor)
Image: Robert Martin
Image: Abraham Jefferson Seay
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.
The Indian Territory (highlighted in red) in 1834
An artist's 2016 depiction of Spiro Mounds, a Caddoan Mississippian site, as seen from the west
A Caddo village near Anadarko, Oklahoma in the 1870s
The Mississippian culture was a mound-building Native American culture that flourished in North America before the arrival of Europeans.
