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galaxy is geocentric revolves around earth
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galaxy is heliocentric revolves around sun
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improved telescope found 700 stars
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discovered three principles of planetary motion
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improved the telescope killed by church
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Made Newtons three laws of gravity
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.