1992 The first exoplanets are discovered
Polish astronomer Aleksander Wolszczan announced that he found two planets orbiting the pulsar PSR 1257+12.
1967 Dictator Georgios Papadopoulos assumes power in Greece
During his six-year reign, thousands of political opponents were incarcerated and tortured.
1934 The Surgeon's photo, allegedly showing the Loch Ness Monster, is published in the Daily Mail
In reality, the famous image depicts a toy submarine with a head and neck made of wood putty.
1918 The Red Baron is killed
Manfred von Richthofen was a legendary German fighter pilot. He earned his renown and nickname by achieving 80 air combat victories in World War I. He was shot down and killed during combat at the age of 25.
1509 Henry VIII is crowned King of England
In popular culture, the monarch is known mainly for his six marriages, two of which ended with the wife's execution.
Births On This Day – 21 April
1959 Robert Smith
English singer-songwriter, guitarist1947 Iggy Pop
American singer-songwriter, producer, actor1926 Elizabeth II
of The United Kingdom1864 Max Weber
German economist, sociologist1838 John Muir
Scottish/American environmentalist, author
Deaths On This Day – 21 April
2016 Prince
American singer-songwriter, guitarist, producer, actor2003 Nina Simone
American singer-songwriter, pianist1946 John Maynard Keynes
English economist1910 Mark Twain
American author