| 1776: | Continental Navy frigate Columbus captures HM Tender Hawke, first American capture of British armed vessel |
| 1854: | Sailors and Marines from sailing sloop, Plymouth, protect U.S. citizens at Shanghai |
| 1898: | Appointment of first Civil Engineering Corps officer, Mordecai Endicott, as Chief, Bureau of Yards and Docks |
| 1949: | Establishment of NATO |