| 1776: | First amphibious landing operation. Continental naval squadron under Commodore Esek Hopkins lands Sailors and Marines, commanded by Captain Samuel Nicholas, on New Providence Island in the Bahamas, capturing urgently-needed ordnance and gunpowder. |
| 1871: | Navy Medical Corps established |
| 1883: | Congress authorizes 4 modern ships of steel, "A,B,C, D Ships"; three cruisers, Atlanta, Boston and Chicago, and dispatch boat Dolphin |
| 1915: | Congress creates Federal Naval Reserve. Under it Naval Reserve Force built up. |
| 1915: | Office of Chief of Naval Operations (CNO) established |
| 1960: | USS Sargo returns to Hawaii from arctic cruise of 11,000 miles, 6,003 miles under the polar ice |