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Earth center solar system, no telescope
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Sun in the center, planets round
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Improved telescope, supported Copernicus, moon stars
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Supernova, sun and earth in center
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Elliptical, three rules of planetary motion
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Laws of motion, optics, gravity, calculus.
A list shows items. A timeline shows sequence.
Use Timetoast to make dates, milestones, and turning points easier to understand in a clear visual format. Timetoast is a timeline maker for work, school, research, and stories.