The Kiowas are a tribe of Native Americans that migrated from western Montana southward into the Rocky Mountains in Colorado during the 17th and 18th centuries, and finally into the Southern Plains by the early 19th century. In 1867, the Kiowa were moved to a reservation in southwestern Oklahoma.
Today they are federally recognized as Kiowa Tribe of Oklahoma with headquarters in Carnegie, Oklahoma. The Kiowa language (Cáuijògà) is still spoken today and is part of the Tanoan language family. Kiowa call themselves Ka'igwu, Cáuigù or Gaigwu, most given with the meaning "Principal People". Since 1968, the Kiowa have been governed by the Kiowa Tribal Council, which preside over business related to health, education, and economic and industrial development programs.
On March 13, 1970, the Constitution and Bylaws of the Kiowa Tribe of Oklahoma was drafted. On May 23, 1970, it was ratified by voters of the Kiowa Tribe and remain in force. In 1998, a significant legal development occurred with a landmark decision. In Kiowa Tribe of Oklahoma v Manufacturing Technologies, the U.S. Supreme Court ruled that Indian tribes retain their sovereign immunity from suit without their consent even in off-reservation transactions where they do not waive that immunity.