This Day in Naval History - April 21
1861 - USS Saratoga captures the slaver Nightingale.
1898 - U.S. declares war on Spain.
1952 - USS Horace A. Bass (APD 124) commences a series of eight amphibious raids for intelligence and destruction, landing Republic of Korea troops at night against selected targets along the northeast coast of Korea.
1972 - Moonwalk in the Descartes Highlands by Navy John W. Young, commander of Apollo 16. He was the ninth man to walk on the moon. Lt. Cmdr. Thomas K. Mattingly II, was the command module pilot. During the 11-day, 1-hour and 51-minute mission, 213 pounds of lunar material was collected. Recovery was made by Helicopter Combat Support Squadron 1 from USS Ticonderoga (CVS 14).
(Source: Navy News Service)