1825 - USS Brandywine sails for to carry the Marquis de Lafayette home after his year long visit to .
1841 - First iron ship authorized by Congress
1940 - Navy awards contracts for 210 ships, including 12 carriers and 7 battleships
1943 - Operation Avalanche, Western Naval Task Force under VADM Hewitt, USN, lands Allied forces at Salerno, Italy
1944 - Fifth Fleet carrier aircraft begin air strikes on Japanese shipping and facilities at Mindanao, Philippines
1945 - A "computer bug" is first identified and named by LT Grace Murray Hopper while she was on Navy active duty in 1945. It was found in the Mark II Aiken Relay Calculator at . The operators affixed the moth to the computer log, where it still resides, with the entry: "First actual case of bug being found." They "debugged" the computer, first introducing the term.