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Gerolamo Cardano

Italian polymath
Gerolamo Cardano was an Italian polymath whose interests and proficiencies ranged through those of mathematician, physician, biologist, physicist, chemist, astrologer, astronomer, philosopher, writer, and gambler. Wikipedia
Born: September 24, 1501, Pavia, Italy
Died: September 21, 1576 (age 74 years), Rome, Italy
Known for: Cardano–Tartaglia formula; First systematic use of negative numbers in Europe
Spouse: Lucia Banderini (m. 1531–1546)