character: Ancient Chinese Workers
topic: Labor Force Behind the Great Wall
grade: 3
subject: History
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character: Emperor Qin Shi Huang
topic: Construction Management of the Great Wall
grade: 3
subject: History
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character: Hunters and Farmers
topic: Utilization of Local Labor in Great Wall Building
grade: 3
subject: History
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character: Artisans and Craftsmen
topic: Skills Contributed to Great Wall Construction
grade: 3
subject: History
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