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Ptolemy came up with the Geocentric Theory.
All the Solar System circles the Earth. -
Heliocentric Theory Sun is center of Solar System and planets
orbit around it. -
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.