1850 – City of Los Angeles incorporated.
1887 – Susanna Madora Salter elected 1st US woman mayor in Argonia, Kansas.
1902 – Cecil Rhodes scholarship fund forms with $10 million.
1911 – Hugh Chalmers, automaker, suggests idea of baseball MVP.
1915 – Germany protests vigorously to the US, claiming it must insist that Britain lifts its blockade and assert American neutrality.
1932 – George Bernard Shaw’s “Too True to be Good” premieres in NYC.
1937 – 4th Augusta National Invitation Tournament (Masters) Golf: Byron Nelson wins first of his 5 major titles by 2 strokes ahead of Ralph GuldahL
1945 – World War II: U.S. Army occupies Bielefeld in north-eastern Germany.
1948 – 84-year-old Connie Mack challenges 78-year-old Clark Griffith to a race from home to 1st base; it ends in a tie.
1949 – North Atlantic Treaty Organization (NATO) treaty signed in Washington, D.C.
1960 – 32nd Academy Awards: “Ben-Hur”, Charlton Heston & Simone Signoret win.
1964 – Beatles’ “Can’t Buy Me Love” single goes #1 & stays #1 for 5 weeks.
1968 – US civil rights activist Martin Luther King, Jr. assassinated in Memphis, Tennessee.
1974 – Hank Aaron ties Babe Ruth’s home-run record by hitting his 714th.
1975 – Microsoft is founded as a partnership between Bill Gates and Paul Allen to develop and sell BASIC interpreters for the Altair 8800.
1983 – 45th NCAA Men’s Basketball Championship: North Carolina State beats Houston, 54-52; Wolfpack win with buzzer-beating dunk by Lorenzo Charles off a desperation 30 foot shot from Derrick Whittenburg.
1987 – Dow Jones up 69.89 points, ending at record 2,390.34 points.
1991 – Senator John Heinz of Pennsylvania and six others are killed when a helicopter collides with their plane over an elementary schools in Merion, Pennsylvania.
2005 – 67th NCAA Men’s Basketball Championship: North Carolina beats Illinois, 75-70; Tar Heels’ 4th national championship.
2017 – Alibaba becomes the world’s largest retailer according to US Securities and Exchange Commission.