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Hypatia (born c. 355 ce—died March 415, Alexandria) was a mathematician, astronomer, and philosopher who lived in a very turbulent era in Alexandria’s history. She is the earliest female mathematician of whose life and work reasonably detailed knowledge exists. Hypatia was the daughter of Theon of Alexandria, himself a mathematician and astronomer and the last attested member of the Alexandrian Museum (see Researcher’s Note: Hypatia’s birth date). Theon is best remembered for the part he...