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Births on September 27

1879Sep, 27

Hans Hahn (mathematician)

Hans Hahn, Austrian mathematician and philosopher (d. 1934)
Hans Hahn (German: [haːn]; 27 September 1879 – 24 July 1934) was an Austrian mathematician and philosopher who made contributions to functional analysis, topology, set theory, the calculus of variations, real analysis, and order theory. In philosophy he was among the main logical positivists of the Vienna Circle.

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Events on 1879

  • 8Feb

    Sydney Riot of 1879

    The England cricket team led by Lord Harris is attacked during a riot during a match in Sydney.
  • 15Feb

    Rutherford B. Hayes

    Women's rights: US President Rutherford B. Hayes signs a bill allowing female attorneys to argue cases before the Supreme Court of the United States.
  • 5Apr

    War of the Pacific

    Chile declares war on Bolivia and Peru, starting the War of the Pacific.
  • 21Oct

    Incandescent light bulb

    Thomas Edison applies for a patent for his design for an incandescent light bulb.
  • 22Oct

    Thomas Edison

    Using a filament of carbonized thread, Thomas Edison tests the first practical electric incandescent light bulb (it lasted 13½ hours before burning out).