Sioux Indians and ponies by the Keystone View Co., 1919.
The name Sioux derives from the Chippeway word "Nadowessioux" which means "Snake" or "Enemy." However, the Sioux generally call themselves Lakota or Dakota, meaning "friends, allies, or to be friendly."
The Sioux were a proud people with a rich heritage. They were the masters of the North American plains and prairies, feared by other tribes from the great lakes to the Rockies.