The Sioux Nation: A nation is a group of people who have a similar language, similar customs, and a similar or shared government.
The Sioux Nation in olden times was huge. Seven large tribes made up the Sioux Nation - Wdewakanton, Sisseton, Teton, Wahpekute, Wahpeton, Yankton, and Yanktonai.
In olden days, the Sioux lived on the Great Plains.