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Claudius HipparchusEssay Preview: Claudius HipparchusReport this essayHipparchusHipparchus (190-120 BCE) was a Greek astrologer, astronomer, geographer, and mathematician of the Hellenistic period. Also, he is considered the founder of trigonometry. He was born in Nicaea (now Iznik, Turkey), and he was the first whose quantitative and accurate models for the motion of the Sun and Moon.