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Contact & Columbian Exchange

US History

CASE BRIEF: When two hemispheres met after 1492, plants, animals, people, and diseases moved in both directions, reshaping population, diet, and power on every continent.


TASK: Evaluate how the Columbian Exchange transformed both the Americas and Afro-Eurasia, weighing benefits against catastrophic costs.


EVIDENCE: Trade good inventories (maize, potatoes, horses, sugar) - Population decline estimates for Indigenous communities post-contact - Excerpts from Bartolome de las Casas's accounts


ANALYZE: Which changes were intentional versus accidental? Who benefited most, and who bore the greatest cost? How reliable are population estimates from this era?


BUILD A CLAIM: Write a claim on whether the Columbian Exchange should be remembered primarily as a story of transformation, exploitation, or both.


RUBRIC: Uses at least 3 pieces of evidence - Addresses both hemispheres - Acknowledges limits of population data

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