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 31st
| 1632 | Joost Burgi, who invented logarithms independently of Napier and was "the most skilful instrument maker of his day" (O'Connor and Robertson, MacTutor Archive), died in Kassel, Germany, on this day.
More information about: Joost Burgi Burgi's invention of logarithms |
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| 1715 | Birthdate of Giovanni Francesco Fagnano dei Toschi, son of the mathematician Giulio Carlo Fagnano. He calculated the integral of the tangent and, like his father, was interested in the geometry of the triangle.
More information about: Giovanni Francesco Fagnano Giulio Carlo Fagnano |
| 1802 | Gauss elected a corresponding member of the St. Petersburg Academy of Science.
More information about: Carl Friedrich Gauss |
| 1939 | Hewlett-Packard founded. HP calculators used the "reverse Polish notation" devised by Jan Lukasiewicz.
More information about: Hewlett-Packard Jan Lukasiewicz |
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