character: Aqueduct Builders
topic: Engineering Marvels of Ancient Civilizations
grade: 6
subject: Social Studies
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character: Maya Civilization
topic: Innovations in Agriculture and Irrigation
grade: 6
subject: Social Studies
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character: Aqueducts
topic: Transporting Water in Ancient Rome
grade: 6
subject: Social Studies
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character: Mayan Farmers
topic: Techniques for Sustainable Agriculture
grade: 6
subject: Social Studies
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