character: Emperor Qin Shi Huang
topic: The Great Wall of China - Creation and Planning
grade: 3
subject: History
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character: Meng Tian
topic: Ancient Chinese Engineer and the Wall's Construction
grade: 3
subject: History
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character: Chinese Workers
topic: Labor and Techniques Used to Build the Great Wall
grade: 3
subject: History
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character: Ancient Architects
topic: Design Principles of the Great Wall
grade: 3
subject: History
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