1941 - The U.S. fleet is reorganized, reviving the Atlantic and Pacific Fleets.
1942 - USS Enterprise (CV 6) and USS Yorktown (CV 5) make the first World War II air strike on the Japanese in the Marshall Islands
1955 - Operation Deep Freeze, a research task force, is established in Antarctica.
2003 - Space shuttle Columbia broke apart during re-entry on mission STS-107. Cmdr. William C. McCool (Pilot), Capt. David M. Brown (Mission Specialist) and Cmdr. Laurel B. Clark (Mission Specialist) were killed in the incident, along with four other astronauts.
From the Navy News Service