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Open Educational Resources (OER) supporting AMSCO® Advanced Placement® World History: Modern [1200–Present] Topic 1.1.

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<a href="https://www.oerproject.com/AP-World-History/Unit-2/Unit-2-Overview#guide5a4f37a-ad31-4f2c-8862-504b0bc46ee4" rel="nofollow noopener noreferrer" target="_blank">Unit 2: Introduction: Networks of Exchange, c. 1200 to 1450</a>

- <a href="https://www.oerproject.com/AP-World-History/Unit-2/Unit-2-Overview#guide5a4f37a-ad31-4f2c-8862-504b0bc46ee4" rel="nofollow noopener noreferrer" target="_blank">Unit 2: Introduction: Networks of Exchange, c. 1200 to 1450</a>

Topic 2.7: Comparison of Economic Exchange

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