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On This Day

  • 1-28-1540

    Ludolph van Ceulen, who computed the value of pi to 35 decimal places, born in Hildesheim, Germany. Pi is still sometimes referred to as Ludolph's number.

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    Ludolph van Ceulen
    History of the number pi
  • 1-28-1699

    Leibniz elected the first foreign member of the French Academy.

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    Gottfried Leibniz
  • 1-28-1724

    Royal Academy of Sciences founded in St. Petersburg, Russia, by Peter the Great.

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    Russian Academy of Sciences
  • 1-28-1855

    William Burroughs, inventor of a "calculating machine," born in Rochester, NY.

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    William Seward Burroughs