1802 - During the First Barbary War, the frigate, USS Constellation, commanded by Capt. Alexander Murray, defeats nine Corsair gunboats off Tripoli, and sinks two.
1944 - During the Invasion of Guam, Marine Pfc. Leonard F. Mason serves as automatic rifleman with the Second Battalion when he and his men take fire by the Japanese enemy on the Asan-Adelup Beachhead. With his battalion held at this location, he bravely climbs out alone to the enemy's rear position. Critically wounded while pressing forward with his attack, he clears out the hostile position. Evacuated to a hospital ship, he later succumbs to his wounds. For his "conspicuous gallantry and intrepidity" on this occasion, Mason is posthumously awarded the Medal of Honor.
1951 - Adm. Forrest P. Sherman, the 12th Chief of Naval Operations, dies while at Naples, Italy.
1951 - During the Korean War, USS Valley Forge (CV 45) carrier air strikes hit a fuel or an ammunition train near Kumchon, North Korea.
1964 - Four Navy divers (Lt. Cmdr. Robert Thompson, Gunners Mate First Class Lester Anderson, Chief Quartermaster Robert A. Barth, and Chief Hospital Corpsman Sanders Manning) submerge in Sealab I at a depth of 192 feet, 39 miles off Hamilton, Bermuda for an intended three weeks. The crew surfaces early on July 31 due to an oncoming tropical storm.
1966 - USS Julius A. Furer (DEG 6) is launched at Bath Iron Works, Maine. The Brook-class frigate is named in honor of Rear Adm. Julius A. Furer, a naval constructor, inventor, administrator, and author who completed the study "Administration of the Navy Department in World War II."