| 1895: | Award of first submarine building contract to John P. Holland Torpedo Boat Co. |
| 1917: | Armed merchant ships authorized to take action against U-boats |
| 1959: | Naval Research Laboratory takes first ultraviolet pictures of sun |
| 1963: | USS Albany (CG-10) and aircraft from Navy Airborne Early Warning Squadron Four from Roosevelt Roads, Puerto Rico aid five ill crewmembers of Norwegian freighter Jotunfjell |