Crash Course: Columbian Exchange

Effects on Native Americans

New World Impact on Old World

Overall Effect on the World & History

Old World Impact on New World

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50% died from disease; maybe as much as 90%

smallpox

measles

mumps

chicken pox

war spread the disease

,malnutrition

NA's had not been exposed to these diseases

venereal syphillis

disease spread by sailors

tobacco

pig - food increase

oxen - plowing/transportation

increase in food

horses - transportation (NA's shift from farming to hunter-gathering

increase food supply

increases population

population increase

diets more diverse

slavery

genetic diversity