character: Great Wall of China
topic: Famous ancient fortification architecture
grade: 6
subject: Social Studies
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character: Emperor Qin Shi Huang
topic: Constructed parts of the Great Wall
grade: 6
subject: Social Studies
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character: Ming Dynasty
topic: Period of significant restoration of the Great Wall
grade: 6
subject: Social Studies
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character: Watchtowers
topic: Architectural features of the Great Wall used for defense
grade: 6
subject: Social Studies
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