The Columbian Exchange
After 1492 . . .

From the Americas to Europe, Africa, Asia
corn (maize)
potato
sweet potato
beans
peanut
pumpkin
peppers
pineapple
tomato
cocoa

From Europe, Africa, Asia to the Americas
wheat
sugar
bananas
rice
grapes
olive oil
horses
pigs
cows
chickens
goats
smallpox
typhus