1862 - During the Civil War, naval forces under Flag Officer A. H. Foote capture strategic Fort Henry on the Tennessee River, breaching the Confederate line and opening the flood gates for the flow of Union power deep into the South.
1922 - The world powers of the United States, Great Britain, Japan, France and Italy, sign the Washington Naval Treaty providing for limitation of naval armament.
1944 - Lt. j.g. C.I. Purnell, in his PB4Y-1 Liberator aircraft, sinks German submarine U-177 west of Ascension Island, in the South Atlantic.
1945 - U.S. Navy submarine USS Pampanito (SS 383) attacks a Japanese convoy and sinks merchant tanker Engen Maru about 200 miles northeast of Singapore. Also on this date, USS Spadefish (SS 411) sinks Japanese merchant passenger-cargo ship Shohei Maru off Port Arthur, Korea.
1973 - In accordance with the agreement at the Paris Peace Talks, Navy Task Force 78 begins
Operation End Sweep, the mine clearance of North Vietnamese waters of mines laid in 1972.