Social Sciences and History / Unit 16 SSH 1512 short lesson, about 20 seconds
The Columbian Exchange as History and Geography
Captions available
The idea
World history teaches the exchange at 0515: crops, animals and diseases crossing both ways, and the Great Dying. United States history states it in one line at 0005. Geography's 1101 gives the crops' independent origins: maize and potatoes from the Americas, wheat and cattle from Eurasia.
In practice
Hearths first, then the crossing.
Where people slip
The disease toll is the anchor's estimate.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
- Nothing yet depends on this.
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