character: Nicolaus Copernicus
topic: The Heliocentric Theory and Its Historical Context
grade: 11
subject: History
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character: Galileo Galilei
topic: Support and Challenges of the Heliocentric Model
grade: 11
subject: History
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character: Johannes Kepler
topic: Kepler's Laws of Planetary Motion and Their Impact
grade: 11
subject: History
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character: Ptolemy
topic: Geocentric Theory and Its Influence on Astronomy
grade: 11
subject: History
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