Marie and Pierre Curie proved the existence of the new element radium when they chemically isolated one-tenth of a gram of pure radium chloride.
21st June 1919: The German High Seas naval fleet is scuttled at Scapa Flow
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11th November 1918: WW1 Armistice of Compiègne is signed
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14th October 1962: U-2 spy plane captures images of Cuban missile sites
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12th October 539 BCE: Babylon falls to the Persian king Cyrus the Great
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11th November 1918: WW1 Armistice of Compiègne is signed
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1st September 1939: Nazi Germany invades Poland
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9th November 1989: East Germany opens the Berlin Wall
9th November 2019