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 - Office of Chief of Naval Operations (CNO) established
1915 - Congress creates Federal Naval Reserve. Under it Naval Reserve Force
built up 1960 - USS Sargo return to Hawaii from arctic cruise of 11,000 miles, 6,003 miles under the polar ice