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Born in c. AD 100, Claudius Ptolomy lived in the city of Alexandria in the Roman province of Egypt, wrote in Koine Greek, and held Roman citizenship. He was known for believing in the Geometric theory which means he believed that the sun was in the center of the universe.
This site told me what he had contributed to science.
Plan projects on a visual timeline
Map milestones, phases, deadlines, and key events in one place so the sequence is easier to see and share. Timetoast is a timeline maker for work, school, research, and stories.