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On This Day

  • 11-23-1616

    John Wallis, cryptographer and algebraist, born in Ashford, England. He was Savilian Chair of Geometry at Oxford University for over 50 years, having been appointed to the post by Oliver Cromwell in 1649.

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    John Wallis
  • 11-23-1654

    From 10:30 to 12:30 in the evening Pascal experienced a religious ecstasy that called him to give up his intermittent interest in mathematics and to devote his time to religious contemplation.

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    Blaise Pascal
  • 11-23-1823

    Janos Bolyai wrote to his father, "I have made such wonderful discoveries that I am myself lost in astonishment." He was referring to his discovery of non-Euclidean geometry that was published in 1833.

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    Janos Bolyai
    Non-Euclidean Geometry
  • 11-23-1942

    Stanislaw Saks killed by the German Gestapo in Warsaw, Poland. An accomplished analyst, he worked most closely with Banach.

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    Stanislaw Saks
    Stefan Banach