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WATCH: Era 3 Overview

Era 3 was a period of great change and innovation. In many places, the development of farming contributed to new types of communities and long-distance networks. But we don't entirely understand how (or even where and when) these changes happened. We can begin to explore these transformations through two pieces of evidence: a case study of Tapajos in the Amazon rainforest, and data on the emergence of cities around the world.

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Created by World History Project.

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Video transcript