character: Zheng He
topic: Trade Routes and Treasure Ships
grade: 4
subject: Social Studies
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character: Chinese Merchants
topic: Impact of Trade on Cultural Exchange
grade: 4
subject: Social Studies
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character: European Explorers
topic: Trade Routes and Exploration
grade: 4
subject: Social Studies
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character: African Traders
topic: Influence of Treasure Ships on Trade
grade: 4
subject: Social Studies
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