Answer:
The Columbian exchange
Explanation:
The exchanging of goods, plants and animals from New World to Old is called Columbian Exchange.
With the discovery of America by Christopher Columbus in 1492, led the beginning of the Columbian Exchange. The European not only traded goods but brought diseases in the New World. Native Americans were affected the most by the exchange. The spread of diseases surprised because it finished almost all the early civilization in America. The Native American died with chickenpox, smallpox, malaria, cholera, measles, and scarlet fever.