| 1814: | In Battle of Lake Champlain, Commodore Thomas Macdonough defeats a British Squadron. |
| 1939: | Bear (AG-29) is commissioned by the U.S. Navy for Antarctic operations under command of RADM Richard Byrd, USN (Ret.). |
| 1941: | President Franklin D. Roosevelt announces order to the Navy to "shoot on sight" vessels threatening U.S. shipping or ships under U.S. escort. |
| 1942: | Pharmacist's Mate First Class Wheeler B. Lipes, USN, performs emergency appendectomy on Seaman First Class Darrell D. Rector, USNR, on board USS Seadragon on patrol in South China Sea. |
| 1943: | Italian Navy surrenders to Allies |
| 1945: | Operation Magic Carpet, the return of troops to the U.S., begins. |
| 2001: | American Flight 77 hijacked by terrorists struck the Pentagon. Casualties include 33 sailors, 6 Department of the Navy civilians, and 3 Navy civilian contractors reported missing, Arlington, VA. Two commercial airliners also struck the World Trade Center in New York City, NY, destroying both towers. |
| 2002: | The "Don't Tread on Me" First Navy Jack is flown by Navy ships marking the first anniversary of the terrorists attacks on the Pentagon and World Trade Center |