1866 – Congress establishes US Army with six all-Black Regiments including 2 Cavalry and 4 Infantry
1869 – Congress creates four regiments of all-Black soldiers including the 25th Infantry
1877 – Fort Missoula is established
1888 – 25th Infantry arrives at Fort Missoula
1896 – Iron Riders complete training rides to McDonald Lake and Yellowstone National Park
1897 – Iron Riders complete 41-day, 1,900-mile ride from Fort Missoula to St. Louis, MO
1898 – 25th Infantry leaves Missoula for Cuba to fight in the Spanish American War