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Ptomley proposed the Geocentric (Earth Centred) model of the Solar System. He believed that the Earth was orbited by the other celestial bodies (planets ad Sun).
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Nicholaus Copernicus proposed the idea of the Heliocentric (Sun-Centered) model of the solar system. The planets, including Earth, all orbit the Sun (The moon still orbits the Earth).
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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.