On This Day ...
Important events from the history of math that happened on this day:
Choose a day and month and click the button to see events from history for that day.
January 9th
| 1587 | Paul Wittich, who in 1580, with the help of Tycho Brahe, rediscovered the method of prosthaphaeresis, died on this day.
More information about: Prosthaphaeresis Tycho Brahe |
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| 1799 | Maria Gaetana Agnesi died in Milan, Italy. Her Instituzioni analitiche of 1748 was an important calculus text. She is most often associated with the cubic curve known as the Witch of Agnesi, which got its name by a mistranslation.
More information about: Maria Gaetana Agnesi Witch of Agnesi |
| 1839 | Thomas Henderson announced the first stellar parallax.
More information about: Thomas Henderson Parallax |
| 1873 | Birthdate of Hans Blichfeldt. When he graduated from Stanford in 1896, he didn't have enough money to go to Europe for a doctorate, as was then the custom, so he borrowed the money from a Stanford professor. In one year he received his doctorate, summa cum laude, from Leipzig.
More information about: Hans Blichfeldt |
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