The Armstrong Academy closed the school during the Civil War, part of it was used as a Confederate Hospital. The Choctaw Council met there in 1863 and It became the Capital of the Choctaw Nation in the same year, The United Nations of Indian Territory delagates ( Cherokee, Chickasaw, Creek, Choctaw, Seminole and Caddo ) met there with the Confederacy to plan war strategies.
Ref: North American Forts of the West
Possible date: around 1860
This is our earliest known Photograph
1866 map of Indian Teritory and location of the Academy
Indian Territory map
A major Grand Council of the United Nations (of Confederate Indian Tribes) started on Monday, February 1, 1864 at Armstrong (Choctaw) Academy and lasted without disturbance until Wednesday, February 10. Camp Armstrong(1862 - 1865), near BokchitoConfederate troops occupied the Armstrong Academy (1844) and used it as a field camp and hospital.
Numbered locations in the Choctaw Nation