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Hypatia  

Michael A. B. Deakin

Alexandrian astronomer, mathematician, and philosopher, was the first woman mathematician of whose life and work we have reasonably detailed and secure knowledge. She was active as a public figure, taking a leading part in the civic affairs of Alexandria and also delivering popular lectures on philosophy: a Neoplatonist philosophy heavily influenced by mathematics. She also taught students the intricacies of technical mathematics and astronomy. Her public profile alone was probably distinguished enough to earn her a place in history, but this has been cemented by the lurid nature of her death. She died in 415, murdered by a crowd of Christian zealots who seized her, stripped her, and proceeded to dismember her and to burn her mangled corpse. Undoubtedly this further circumstance has served to keep her name alive.

Hypatia was the daughter of the mathematician Theon and taught both mathematics and philosophy in the then Greek city of Alexandria ...

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Ptolemy  

Prudence Jones

was an ancient Alexandrian astronomer geographer and philosopher Almost nothing is known about the life of Claudius Ptolemy or as he would have called himself Claudius Ptolemaeus From astronomical observations he made in Alexandria we know he was active between 127 and 141 CE As a scientist in Alexandria he was probably connected with the Library of Alexandria His name indicates that he was a Roman citizen and that citizenship was probably conferred upon him or upon one of his ancestors by someone named Claudius perhaps even the emperor Claudius He shares the name Ptolemy with the rulers of the Ptolemaic dynasty which controlled Egypt from 323 to 30 BCE although there is no evidence that he was related to that family The name Ptolemaeus could indicate that he was born in the Egyptian city of Ptolemais but it is not known whether he was born there or at Alexandria ...