1864 - While operating on the Roanoke River at Rainbow Bluff, N.C., the side-wheel gunboat Otsego strikes two Confederate mines. The steam tugboat Bazely rushes to help Otsego, but she also hits a mine. Both vessels eventually sink. During this operation, the side-wheel gunboat Wyalusing provides fire cover while boats dragged for mines.
1938 - A prototype shipboard radar, XAF, designed and built by the Naval Research Laboratory, is installed on USS New York (BB-34). Installation on U.S. Navy vessels begins in 1940 and proves fruitful in detecting the enemy in World War II.
1941 - USS Swordfish (SS 193) makes initial U.S. submarine attack on Japanese ship, torpedoing a ship 150 miles west of Manila. Her claim of sinking, though, is not confirmed in enemy records.
1944 - USS Charles F. Hughes (DD 428) and USS Madison (DD 425) bombard German coast artillery positions and troop concentrations along the Franco-Italian border.