This Day in Naval History - March 20
From the Navy News Service1833 - Capt. David Geisinger of the sloop Peacock negotiates the first commercial treaty with the King of Siam.
1922 - USS Jupiter is recommissioned as Langley (CV 1), the Navy's first aircraft carrier.
1939 - The Naval Research Lab recommends financing a research program to learn to obtain power from uranium.