1846 - First visit of U.S. warships (USS Columbus and USS Vincennes) to Japan is unsuccessful in negotiating a treaty.
1960 - In first launch of Polaris missile, USS George Washington (SSBN 598) successfully fires 2 operational Polaris missiles while submerged off Florida.
1964 - Four Navy divers enter Project SEALAB I capsule moored 192 feet on the ocean floor off Bermuda for 11 day experiment.
1969 - Former Navy pilot Neil Armstrong is first man to set foot on the moon. While taking the first step, he said, "That's one small step for man, one giant leap for mankind." Armstrong was Commander of Apollo 11 which during its 8 day mission landed on the Sea of Tranquility. Recovery was by HS-4 helicopters from USS Hornet (CVS-12).
1823 - After pirate attack, LT David G. Farragut leads landing party to destroy pirate stronghold in Cuba.
1944 - Invasion and recapture of Guam begins.
1946 - In first U.S. test of adaptability of jet aircraft to shipboard operations, XFD-1 Phantom makes landings and takeoffs without catapults from Franklin D. Roosevelt.
1987 - Navy escorts first Earnest Will Convoy in the Persian Gulf.
1802 - Frigate Constellation defeats 9 Corsair gunboats off Tripoli.
1905 - Body of John Paul Jones moved to Annapolis, MD for reburial.
1953 - U.S. ships laid down heavy barrage to support UN troops in Korea.
1964 - Four Navy Divers (LCDR Robert Thompson, MC; Gunners Mate First Class Lester Anderson, Chief Quartermaster Robert A. Barth, and Chief Hospital Corpsman Sanders Manning) submerge in Sealab I for 10 days at a depth of 192 feet, 39 miles off Hamilton, Bermuda. They surfaced on 31 July 1964.
1974 - Evacuees from the coup on Cyprus arrive on board Navy vessels in the Mediterranean. Operation ended on 24 July.
1947 - First Navy all jet squadron (VF-17A) receives its first aircraft (FH).
1948 - USS Putnum (DD-757) evacuates U.N. team from Haifa, Israel and becomes first U.S. Navy ship to fly the U.N. flag.
1950 - USS Boxer sets record crossing of Pacific to bring aircraft, troops, and supplies to Korea at start of the Conflict.
1958 - USS Nautilus (SSN-571) departs Pearl Harbor for first submerged transit of North Pole.
1993 - Sarah Deal becomes first women Marine selected for naval aviation training.
1813 - Sailing Master Elijah Mix attempts to blow up British warship Plantagenet with a torpedo near Cape Henry, Virginia.
1944 - Following 43 days of naval gunfire and air bombardment, Naval Task Force lands Marines on Tinian.
1779 - Amphibious expedition against British in Penobscot Bay, ME.
1863 - U.S. Squadron bombards Fort Wagner, NC.
1866 - Rank of Admiral created. David G. Farragut is appointed the first Admiral in the U.S. Navy.
1898 - Landing party from armed yacht Gloucester occupies Guanica, Puerto Rico.
1912 - First specifications for naval aircraft published.
1934 - First President to visit Hawaii, Franklin D. Roosevelt, reaches Hilo on board USS Houston.
1941 - Bureau of Ordnance issues first Navy "E"certificates (for excellence) for industry.
1943 - Launching of USS Harmon (DE-72), first ship named for African-American.
1990 - USS Cimarron rescues 25 refugees adrift southeast of Subic Bay, Philippines.
1812 - Frigate Essex captures British brig Leander.
1912 - First airborne radio communications from naval aircraft to ship (LT John Rodgers to USS Stringham).
1942 - CAPT Joy Bright Hancock appointed Director, Women's Naval Reserve.
1948 - President Harry S. Truman orders desegregation of the Armed Services.
1954 - 3 aircraft from USS Philippine Sea (CVA-47) shoot down 2 Chinese fighters that fired on them while they were providing air cover for rescue operations for a U.K. airliner shot down by a Chinese aircraft.