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was the first person to measure the world (25000 circumference) with parellel sun rays
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people used stones in a circle to mark summer and winter solstices
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the guy that found that planets move at a constant speed around small circles called epicycels
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greek scientist responsible for the harmony of spheres.
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aborigonal people used rocks to align with stars
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.