1917:	USS Cassin (DD-43) torpedoed by German submarine U-61 off coast of Ireland. In trying to save the ship, Gunner's Mate Osmond Kelly Ingram becomes first American sailor killed in World War I and later is awarded the Medal of Honor for his heroism. He becomes the first enlisted man to have a ship named for him, in 1919.
1948:	First women officers on active duty sworn in as commissioned officers in regular Navy under Women's Service Integration Act of June 1948 by Secretary of the Navy John L. Sullivan: CAPT Joy B. Hancock, USN; LCDR Winifred R. Quick, USN; LCDR Anne King, USN; LCDR Frances L. Willoughby, MC, USN; LT Ellen Ford, SC, USN; LT Doris Cranmore, MSC, USN; LTJG Doris A. Defenderfer, USN; and LTJG Betty Rae Tennant, USN.
1957:	USS Lake Champlain reaches Valencia, Spain to assist in flood rescue work.
1960:	USS Patrick Henry (SSBN-599) begins successful firing of four Polaris test vehicles under operational rather than test conditions. Tests are completed on 18 October.
1965:	U.S. Naval Support Activity Danang Vietnam, established.