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Births on December 22

Pierre Ossian Bonnet
1819Dec, 22

Pierre Ossian Bonnet

Pierre Ossian Bonnet, French mathematician and academic (d. 1892)
Pierre Ossian Bonnet (French: [bɔnɛ]; 22 December 1819, Montpellier – 22 June 1892, Paris) was a French mathematician. He made some important contributions to the differential geometry of surfaces, including the Gauss–Bonnet theorem.

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Events on 1819

  • 19Feb

    South Shetland Islands

    British explorer William Smith discovers the South Shetland Islands and claims them in the name of King George III.
  • 1Jul

    Great Comet of 1819

    Johann Georg Tralles discovers the Great Comet of 1819, (C/1819 N1). It was the first comet analyzed using polarimetry, by François Arago.
  • 7Aug

    Battle of Boyacá

    Simón Bolívar triumphs over Spain in the Battle of Boyacá.