The Spanish poet Cervantes died in Madrid. (Some sources say April 23.)
Congress authorized the inscription "In God We Trust" on coins minted as U.S. currency.
The land rush in Oklahoma began when it was opened to settlers.
The first Earth Day was observed.
Richard M. Nixon died of a stroke at the age of 81.
Armed immigration agents took Elian Gonzalez from the Miami home of his relatives to reunite him with his father.