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On This Day

  • 11-13-354

    Saint Augustine of Hippo born in what is now Algeria. He wrote, "The good Christian should beware of mathematicians and all those who make empty prophecies. The danger already exists that mathematicians have made a covenant with the devil to darken the spirit and confine men in the bonds of Hell."

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    St. Augustine of Hippo
  • 11-13-1711

    Joseph Addison wrote in The Spectator (Issue #221): "Those who are versed in the Philosophy of Pythagoras, and swear by the Tetrachtys, that is, the number Four, will know very well that the number Ten, which is signified by the letter X, (and which has so much perplexed the town) has in it many particular powers; that it is called by platonick writers the complete number; that One, Two, Three, and Four put together make up the number Ten, and that Ten is all. But these are not mysteries for ordinary readers to be let into. A man must have spent many years in hard study before he can arrive at a knowledge of them."

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    Joseph Addison and The Spectator
  • 11-13-1884

    The London Mathematical Society awarded its first De Morgan Medal to Arthur Cayley, who "has invented and worked out the theory of invariants, and in steady life-long work connected it with nearly every branch of mathematics, enriching everything he touches, and everywhere throwing open new vistas of future work."

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    The De Morgan Medal
    Arthur Cayley