On This Day for April 20 - Explosion on the Deepwater Horizon oil rig, Adolf Hitler is featured, and more

This message contains graphics. If you do not see the graphics, [click here to view](. April 20 [Hitler, Adolf]( FEATURED BIOGRAPHY 1889 Adolf Hitler [READ MORE]( [Deepwater Horizon oil spill: fireboats]( FEATURED EVENT 2010 Explosion on the Deepwater Horizon oil rig [READ MORE]( Advertisement Advertisement [Explore Britannica's 100 Women Trailblazers]( MORE EVENTS ON THIS DAY [Patrick, Danica] 2008: American race car driver [Danica Patrick]( won the IndyCar 300, becoming the first woman to win an IndyCar championship event. [Three teenagers at a vigil service in Denver to honour the victims of the shooting spree at Columbine High School, Littleton, Colorado, April 1999.] 1999: Two disgruntled and heavily armed students entered [Columbine High School]( in [Littleton]( Colorado, and murdered 13 people before killing themselves. [Trudeau, Pierre] 1968: [Pierre Elliott Trudeau]( of the [Liberal Party]( became prime minister of [Canada]( in that post, he discouraged the French separatist movement, oversaw the formation of a new constitution, and established relations with China. [Lange, Jessica] 1949: American actress [Jessica Lange]( who was known for her versatility and intelligent performances, was born. [Turkey] 1924: Finalizing the dissolution of the [Ottoman Empire]( [Turkey]( Grand National Assembly voted to adopt a full republican constitution, with General [Mustafa Kemal]( who had first proclaimed the Turkish republic about six months earlier, becoming the first president of the republic. [Fenway Park] 1912: Navin Field (later called Tiger Stadium) in Detroit and [Fenway Park]( in Boston officially opened as both hosted their first professional [baseball]( games; Tiger Stadium closed in 1999, leaving Fenway as the oldest baseball stadium in [Major League Baseball](. [SEE ALL EVENTS ON THIS DAY]( ALSO BORN ON THIS DAY 1949 [Jessica Lange]( American actress 1808 [Napoleon III]( emperor of France 1951 [Luther Vandross]( American singer 1893 [Joan Miró]( Spanish artist 1920 [John Paul Stevens]( United States jurist [SEE ALL BIOS ON THIS DAY]( Advertisement FOLLOW: [Facebook]( [Twitter]( [YouTube]( To unsubscribe from Britannica e-mails, [click here](. Encyclopædia Britannica 325 N. LaSalle Street, Suite 200 Chicago, Illinois 60654 United States © 2019 Encyclopaedia Britannica, Inc. [Privacy Policy]( • [Help](