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On This Day

  • 7-6-1476

    Regiomontanus poisoned to death in Rome. The father of trigonometry as a science independent of astronomy, Johann Mueller was poisoned by the sons of a man against whom he had written a polemic.

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    Johann Mueller (Regiomontanus)
    Trigonometry
  • 7-6-1785

    Decimal system of money with the dollar as unit adopted by the Continental Congress of the United States of America.

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    The Continental Congress
    History of the Dollar
  • 7-6-1854

    Georg Simon Ohm died in Munich, Germany. Ohm's Law describing conduction of electricity in a circuit was part of a complete theory of electricity deemed too mathematical by contemporary physicists.

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    Georg Simon Ohm

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