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Births on June 20

1917Jun, 20

Helena Rasiowa

Helena Rasiowa, Austrian-Polish mathematician and academic (d. 1994)
Helena Rasiowa (20 June 1917 – 9 August 1994) was a Polish mathematician. She worked in the foundations of mathematics and algebraic logic.

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Events on 1917

  • 22Jan

    Woodrow Wilson

    World War I: President Woodrow Wilson of the still-neutral United States calls for "peace without victory" in Europe.
  • 15Mar

    Nicholas II of Russia

    Tsar Nicholas II of Russia abdicates the Russian throne ending the 304-year Romanov dynasty.
  • 2Apr

    Woodrow Wilson

    World War I: United States President Woodrow Wilson asks the U.S. Congress for a declaration of war on Germany.
  • 5Jun

    Conscription

    World War I: Conscription begins in the United States as "Army registration day".
  • 27Jul

    Battle of Passchendaele

    The Allies reach the Yser Canal at the Battle of Passchendaele.