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With the scientific revolution beginning in astronomy, Copernicus's heliocentric system was the first major discovery of the revolution, when he questioned Ptolemy's geocentric system. His theory was backed up due to the fact that the phases of Venus could only be made by revolving around the sun.
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.