Continental ship, Ranger, commanded by John Paul Jones, receives the first official salute to a U.S. Stars and Stripes flag by a foreign government (the French fleet) at Quiberon, France.
The frigate Essex, commanded by Capt. David Porter, becomes the first U.S. Navy warship to round Cape Horn and enter the Pacific Ocean.
The frigate Constitution, commanded by Capt. Charles Stewart, captures the British Lovely Ann off Guiana, the first of four during a five-day period.
USS Gato (SS 212) sinks Japanese Coast Defense Vessel No.9 in the Yellow Sea and USS Hawkbill (SS 366) sinks Japanese auxiliary submarine chasers Cha 4 and Cha 114 in the Java Sea.
Water Tender Second Class Elmer C. Bigelow heroically fights a blaze after USS Fletcher (DD 445) is hit by enemy shelling. Bigelow dies the next day from his injuries. He is posthumously awarded the Medal of Honor for his "conspicuous gallantry and intrepidity.” USS Bigelow (DD 942) is named in his honor in 1957.
Guided Missile Destroyer USS Mahan (DDG 72) is commissioned.