Fort Leavenworth is a United States Army installation in Leavenworth County, Kansas. It was built in 1827. It is the oldest active United States Army post west of Washington, D.C., and it is the oldest permanent settlement in Kansas.[1] Fort Leavenworth has been historically known as the "Intellectual Center of the Army."[2]
↑"Fort Leavenworth". National Historic Landmark summary listing. National Park Service. Archived from the original on 15 June 2009. Retrieved 25 June 2008.