This Day in Naval History - March 20

1833 - 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.

For more information about naval history, visit the Naval Historical Center Web site at www.history.navy.mil.