On May 21, 1874, Congress approved the establishment of the United States Disciplinary Barracks (USDB), formerly the United States Military Prison at Fort Leavenworth. The original prison was once a quartermaster depot, supplying all military posts, camps, and stations in the Indian Territory to the West. It has been the "center of correctional excellence" in the military for over 130 years, housing the most notorious service members in the armed forces, including maximum-custody inmates and those with death sentences. On October 5, 2002, retreat was played for the last time in front of the eight-story castle inside the old USDB, and another era started with the occupation of a new modern correctional facility.