Armstrong Academy, established by the Choctaw Nation and named for Wm. Armstrong, Indian Agt., opened in 1845, with Rev. R.D. Potts serving as Supt. under the Baptist Miss. Soc. A post office was established in Nov., 1850. During the Civil War it was the Confederate Capitol, and from 1863 to 1883 it served as the Choctaw Capitol. Noted chiefs there included Peter P. Pitchlynn, Allen Wright, and Jackson McCurtain.