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earth center, solar system, longitude, latitude
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sun center, planets revolve, solar system
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danish astronomer, discovered supernovae, developed theory
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Telescope was invented.
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three scientific laws, planetary motion, elliptical
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moons, Italian, jail, tower, used telescope
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universal gravitational pull, equation mass, acceleration
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.