- 1942 - During World War II, the U.S. Naval Operating Base at Auckland, New Zealand, is established.
- 1943 - USS S-28 (SS 133) sinks Japanese gunboat No. 2 Katsura Maru, 165 miles southwest of Paramushir, Kuril Islands.
- 1943 - While conducting daylight reconnaissance of the Bay of Naples to investigate German shore battery activity on the Sorrento Peninsula, Motor Torpedo Boats PT 204 and PT 209 are showered with water from near-hits but escape damage. They chart the location of the battery before leaving the area.
- 1981 - Philippine Navy frigate, Datu Kalantia, previously, USS Booth (DE 170), is forced aground by Typhoon Clara while at anchor near Clayan Island, 340 miles north of Manila. USS Mount Hood (AE 29), with a special medical team embarks and joins in on rescue operations on Sept. 21. Only 18 members of the crew survive.
- 1986 - USS Bunker Hill (CG 52) is commissioned at Charleston Naval Shipyard in Boston, near the American Revolutionary War battleground for which the ship is named. The Ticonderoga-class guided-missile cruiser is homeported at Naval Base San Diego.
- 1997 - USS Bataan (LHD 5) is commissioned at Pascagoula, Miss. The Wasp-class amphibious assault ship is homeported at Norfolk, Va. It is the second US Navy ship named in remembrance of the valiant resistance of American and Filipino troops on the Bataan Peninsula in the dawning days of World War II.
- 2008 - Cryptologic Technician Third Class Matthew J. OBryant dies in the bombing of the Marriott Hotel in Islamad, Pakistan. OBryant is assigned to the Navy Information Operations Command at Fort Meade, Md.
