character: Incas
topic: The Role of Incas in Building Roads for Communication
grade: 3
subject: History
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character: Chasquis
topic: Inca Messengers and the Communication System
grade: 3
subject: History
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character: Sapa Inca
topic: Leadership and Infrastructure in the Inca Empire
grade: 3
subject: History
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character: Inca Engineers
topic: Engineering Marvels: The Inca Road System
grade: 3
subject: History
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