Formation of United States Military Services:
Army, established June 14, 1775
Navy, established October 13, 1775
Marine Corps established November 10, 1775
(dissolved April 1783)
Revenue Cutter Service established August 4, 1790
(later renamed as Coast Guard)
Marine Corps reestablished July 11, 1798
Army Air Corps established 1907
Coast Guard (renamed from Revenue Cutter Service) established January 20, 1915
Air Force (renamed from Army Air Corps) September 18, 1947