Happy Birthday! Roy Clark, Emma Thompson, Heloise Cruse Evans
1865 - U.S. President Abraham Lincoln died from injuries inflicted by John Wilkes Booth.
1871 - "Wild Bill" Hickok became the marshal of Abilene, Kansas.
1912 - The ocean liner Titanic sank in the North Atlantic after hitting an iceberg the evening before. 1,517 people died and more than 700 people survived.
1940 - French and British troops landed at Narvik, Norway.
1945 - During World War II, British and Canadian troops liberated the Nazi concentration camp Bergen-Belsen.
1952 - The first B-52 prototype was tested in the air.
1959 - Cuban leader Fidel Castro began a U.S. goodwill tour.
1967 - Richard Speck was found guilty of murdering eight student nurses.
1983 - Tokyo Disneyland opened.
1986 - U.S. F-111 warplanes attacked Libya in response to the bombing of a discotheque in Berlin on April 5, 1986.
1994 - The World Trade Organization was established.
1998 - Pol Pot died at the age of 73. The leader of the Khmer Rouge regime thereby evaded prosecution for the deaths of 2 million Cambodians.