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He founded the Geometry of Lines and is given credit for introducing abstract geometry.
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He was the first to believe that there may be a multi-verse and that other planets could host life.
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When he was forty-six he began tutoring Alexander the Great
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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.