1. The Columbian Exchange

2. New World
Old World
North and South America
Europe, Asia, Africa

3. Columbian Exchange
The transfer of plants, animals and diseases between the New World and the Old World.

4. How would our world be different today without the Columbian Exchange?
NEW WORLD
OLD WORLD
PLANTS
ANIMALS
DISEASE
PLANTS
ANIMALS
DISEASE
How would our world be different today without the Columbian Exchange?

5. Columbian Exchange GOOD BAD
Increased Variety in food means healthier diets
Helps people be healthier
Potato helps population grow in Africa
New grains in New World rather than just corn
New World gains domesticated animals
Food, labor, etc.
Disease to the New World

6. GAME!

7. Disease in the New World
As many as 90% of the population was wiped out by disease
Infected Indians fled to other villages
Carrying the disease
Why so much disease in the Old World and not in the New World?
American cities were more clean than European cities
Indians didn’t have cattle and pigs at all, let alone in their homes

8. Why did disease affect Natives so much?
Native Americans didn’t have immunities
They had very few serious diseases in their population, so they weren’t used to fighting bacteria and viruses

9. Why was there so much disease in the Old World?
Native American cities were more clean than European cities
Indians didn’t have cattle and pigs at all, let alone in their homes