Today is the 94th day of 2015 and the 16th day of spring.
TODAY'S HISTORY: In 1949, 12 nations signed the North Atlantic Treaty Organization (NATO) pact.
In 1968, Martin Luther King Jr. was assassinated by James Earl Ray at a motel in Memphis, Tennessee.
In 1973, the World Trade Center was dedicated in New York City.
In 1975, Bill Gates and Paul Allen founded Microsoft in Albuquerque, New Mexico.
In 2003, U.S. military forces seized Saddam International Airport in Baghdad.
TODAY'S BIRTHDAYS: Tris Speaker (1888-1958), baseball player; Robert Sherwood (1896-1955), playwright; Muddy Waters (1913-1983), blues musician; Marguerite Duras (1914-1996), writer; Maya Angelou (1928-2014), poet/author; Anthony Perkins (1932-1992), actor; Craig T. Nelson (1944- ), actor; David E. Kelley (1956- ), TV writer/producer; Hugo Weaving (1960- ), actor; Graham Norton (1963- ), TV personality; David Cross (1964- ), actor/comedian; Robert Downey Jr. (1965- ), actor; David Blaine (1973- ), magician; Heath Ledger (1979-2008), actor.
TODAY'S FACT: The Beatles remain the only artists in history to simultaneously hold the top five positions on the Billboard Hot 100 chart, a feat the group accomplished on this day in 1964.
TODAY'S SPORTS: In 1982, Wayne Gretzky of the Edmonton Oilers finished the season with 212 points. He remains the only player in NHL history to top 200 points in a season.
TODAY'S QUOTE: "What you're supposed to do when you don't like a thing is change it. If you can't change it, change the way you think about it. Don't complain." -- Maya Angelou
TODAY'S NUMBER: 32 -- days in office for William Henry Harrison, the ninth president of the United States, who died of pneumonia on this day in 1841. Harrison was the first U.S. president to die in office, and his tenure remains the shortest in U.S. presidential history.
TODAY'S MOON: Full moon (April 4).