This Day In Naval History: April 15
1912 - The scout cruisers USS Chester (CL 1) and USS Salem (CL 3) sail from Massachusetts to assist RMS Titanic survivors, and escort RMS Carpathia, which carried the survivors of the Titanic, to New York.
1914 - USS New York (BB 34) is commissioned.
1918 - First Marine Aviation Force, under the command of Capt. Alfred A. Cunningham, USMC, is formed at Marine Flying Field, Miami, Fla.
1943 - USS Yorktown (CV 10) is commissioned.
1945 - USS Frost (DE 144) and USS Stanton (DE 247) join to attack and sink German submarine U 880 and then German sub U 1235, north of the Azores.
1961 - The first nuclear-powered frigate, USS Bainbridge (DLGN-25), is launched at Quincy, Mass.
1962 - USS Princeton (LPH 5) brings the first advisory unit to Vietnam and the Marine Medium Helicopter Squadron (HMM) 362 SocTrang, Mekong Delta, South Vietnam.
1986 - Operation El Dorado Canyon begins. Navy aircraft from USS America (CV-66) and USS Coral Sea (CV-43) attack Libya.
(Source: Naval History and Heritage Command, Communication and Outreach Division)