Wikipedia:Selected anniversaries/April 26
April 26: World Intellectual Property Day.
- 1865 - Boston Corbett shot and killed John Wilkes Booth, the assassin of U.S. President Abraham Lincoln.
- 1925 - Paul von Hindenburg (pictured) defeated Wilhelm Marx in the second round of the German presidential election, becoming the first directly elected head of state of the Weimar Republic.
- 1937 - Spanish Civil War: The bombing of Guernica in Spain by the Condor Legion of the German Luftwaffe resulted in a devastating firestorm.
- 1964 - Tanganyika and Zanzibar merged to form Tanzania.
- 1986 - Chernobyl disaster: A nuclear reactor in Chernobyl, Ukraine suffered a steam explosion, resulting in a fire and a nuclear meltdown.