When the Chickasaw Nation was re-affirmed as a tribal government on March 4, 1856, in Tishomingo, Indian Territory, the Chickasaw people honored their last war leader, Tishominko, by representing him on the Great Seal of the Chickasaw Nation. In addition, the figure represents the courage of the Chickasaw people.
The Great Seal of the Chickasaw Nation was affixed to all legal papers and government documents by the tribal government until Oklahoma statehood in 1907. At that time the federal government took possession of the Seal for use in its representation of the Chickasaw tribal government. The Seal was returned to the Chickasaw tribal government in 1984 and is used today by the Governor on official tribal government documents.