character: Galileo Galilei
topic: Development of Heliocentric Model
grade: 12
subject: History
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character: Nicolaus Copernicus
topic: Heliocentric Theory
grade: 12
subject: History
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character: Johannes Kepler
topic: Planetary Motion and Heliocentrism
grade: 12
subject: History
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character: Isaac Newton
topic: Influence of Heliocentric Model on Modern Science
grade: 12
subject: History
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