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On This Day ...

Important events from the history of math that happened on this day:

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November 23rd

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
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
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
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

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