Otto von Bismarck is appointed Chancellor of the German Empire (1871)
Construction of Dachau, the first Nazi Germany concentration camp, is completed (1933)
The first Earth Day proclamation is issued by San Francisco Mayor Joseph Alioto (1970)
President Jimmy Carter announces a U.S. boycott of the Summer Olympic Games in Moscow to protest the Soviet Invasion of Afghanistan (1980)
b: Ed Broadbent (1936); d: Artur Nebe (1945)
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