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Deaths on January 20

Mary Watson Whitney
1921Jan, 20

Mary Watson Whitney

Mary Watson Whitney, American astronomer and academic (b. 1847)
Mary Watson Whitney (September 11, 1847 – January 20, 1921) was an American astronomer and for 22 years the head of the Vassar Observatory where 102 scientific papers were published under her guidance.

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Events on 1921

  • 15Feb

    Helsinki

    Kingdom of Romania establishes its legation in Helsinki.
  • 20Mar

    Versailles Treaty

    The Upper Silesia plebiscite was a plebiscite mandated by the Versailles Treaty to determine a section of the border between Weimar Germany and Poland.
  • 11Jul

    William Howard Taft

    Former President of the United States William Howard Taft is sworn in as 10th Chief Justice of the U.S. Supreme Court, becoming the only person ever to hold both offices.
  • 29Oct

    Sacco and Vanzetti

    United States: Second trial of Sacco and Vanzetti in Boston, Massachusetts.
  • 11Nov

    Arlington National Cemetery

    The Tomb of the Unknowns is dedicated by US President Warren G. Harding at Arlington National Cemetery.