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the transfer of disease
the introduction of horses to the Native Americans.
The Columbian exchange
The Columbian Exchange has been one of the most significant events in the history of world ecology, agriculture, and culture. it was a widespread exchange of plants, animals, foods, human populations (including slaves), communicable diseases, and ideas between the Eastern and Western hemispheres
Horses good, smallpox bad.
Diseases
the transfer of disease
the horse
the horse
the introduction of smallpox
The introduction of smallpox to the native Americans.
New food sources for Europe.
the transfer of disease
the horse
the introduction of horses to the Native Americans.
One synonym for the Columbian Exchange is the "Great Exchange."
improved diets from new food sources.