This Day in Naval History - May 20
1801 - Four warships sent to Mediterranean to protect American commerce.
1815 - Commodore Stephen Decatur (Frigate Guerriere) sails with 10 ships to suppress Mediterranean pirate raids on U.S. shipping.
1844 - USS Constitution sails from New York on 'round-the-world cruise.
1943 - Establishment of 10th Fleet in Washington, D.C., under command of Adm. King, to coordinate U.S. antisubmarine operations in Atlantic.
For more information about naval history, visit the Naval Historical Center Web site at http://www.history.navy.mil.