TODAY'S HISTORY: In 1865, John Wilkes Booth shot and fatally wounded President Abraham Lincoln at Ford's Theatre in Washington, D.C. Lincoln died the next day.
In 1939, John Steinbeck's "The Grapes of Wrath" was published by Viking Press.
In 1986, the United States launched airstrikes against Libya in retaliation for an April 5 bombing in West Berlin that killed two U.S. servicemen.
In 2003, the International Human Genome Sequencing Consortium announced the successful completion of the Human Genome Project.
TODAY'S BIRTHDAYS: Anne Sullivan Macy (1866-1936), educator; John Gielgud (1904-2000), actor; Rod Steiger (1925-2002), actor; Loretta Lynn (1932- ), singer-songwriter; Julie Christie (1940- ), actress; Pete Rose (1941- ), baseball player/manager; Peter Capaldi (1958- ), actor; Brad Garrett (1960- ), actor; Greg Maddux (1966- ), baseball player; Adrien Brody (1973- ), actor; Anderson Silva (1975- ), mixed martial artist; Sarah Michelle Gellar (1977- ), actress; Rob McElhenney (1977- ), actor; Abigail Breslin (1996- ), actress.
TODAY'S FACT: Research indicates that genetic heredity plays a major role in only about 5% to 10% of all cancers. The rest are caused by aging and other environmental factors.
TODAY'S SPORTS: In 2002, Tiger Woods won his second consecutive Masters Tournament title and third overall.
TODAY'S QUOTE: "Is it not true, then, that my life with all its limitation touches at many points the life of the World Beautiful? Everything has its wonders, even darkness and silence, and I learn, whatever state I may be, therein to be content." -- Anne Sullivan Macy
TODAY'S NUMBER: 2.25 -- weight (in pounds) of the heaviest hailstone ever recorded, which fell in the Gopalganj district of Bangladesh on this day in 1986, in a hailstorm that killed 92.