this was the global movement of plants and animals between *Afro-eurasia and Americas*. *europeans brought bananas, olives, onions, rice, sugarcane, wheat, cattle, goats, horses, and pigs, and also diseases such as smallpox, malaria, and measles. And took potatoes, corn, chocolate, beans, cassava, peanuts, peppers, pumpkin, squash, tobacco, tomatoes, and turkeys back with them*.