JOINT BASE CHARLESTON, S.C. –
April 10, 1963 - During diving tests, the submarine USS Thresher was lost with all hands (112 crew and 12 civilians) east of Cape Cod, Mass.
April 11, 1970 - Apollo 13, commanded by Navy Capt. James Lovell, Jr., blasted off on a mission to the moon. An explosion on board forced the spacecraft to circle the moon without landing.
April 12, 1911 - Lt. Theodore Ellyson qualified as the first naval aviator.
April 13, 1960 - The Navy's navigation satellite, Transit, was placed into orbit from Cape Canaveral, Fla.
April 14, 1988 - USS Samuel B. Roberts struck an Iranian mine off Qatar.
April 15, 1918 - First Marine Aviation Force was formed at Marine Flying Field, Miami, Fla.
April 16, 1947 - An Act of Congress gave Navy Nurse Corps members commissioned rank.