In 1867 after the Civil War, the Creek Indians adopted a constitution that divided their nation into six districts. Everything northeast of the Arkansas River, including Tulsa, became the Coweta district. The political center of this district was located in a log courthouse on Coweta Creek, about a quarter mile west of the modern-day center of the downtown Coweta. The post office was established on May 24, 1897, and took its name from Koweta Mission. As a result of negotiations with the congressional-appointed Dawes Commission regarding the allotment of tribal lands in 1898, the Creek courts’ jurisdiction was turned over to the federal government.