Osages, a tribe of American Indians of the Dakotah family. They were found by Marquette on the Missouri in 1673, but were driven by their enemies to the Arkansas. They fought with the French against the English and against the Chickasaws. They ceded their lands at different times to the government, and in the Civil War about 1,000 of the tribe went south. In 1870 the tribe was removed to Indian Territory and placed in charge of the Quakers, where they have grown more civilized, having a school and cultivating about 2,000 acres of land.