The Columbian Exchange was one largest exchanges between foods and ideas. Through the Columbian Exchange it affected Europe’s population as well as their economy. The Columbian Exchange really affected Europe’s population. One way it effected the population is giving it a surplus of food. Through the surplus of food the population rose drastically. Also Europeans gained several new domestic plants, which they started to grow such as apples, coffee and sugarcane. An effect that causes to decrease the population a bit of Europe was diseases which Europeans never experienced as they came from the New World. Yellow fever was one example of a disease it barely decreased the population size, because there was so much food and new crops increasing the population. Another effect that affected Europe’s population was the immigration to the New World. It was needed for Europeans to have colonies in the New World, so they needed many people to try establishing colonies. As a contrast to Europe’s population boom the New World suffered a harsh population decrease. With the Settlements of Europeans it created a new class system in the New World. The dependency of goods mentioned which helped Europe’s population, through that many natives were killed. Also the diseases brought by Europeans killed many natives, which helped the Europeans establish colonies, which prepared them for the Columbian Exchange. Several goods brought to Europe by the New World and other effects had a drastic cause on European Population. A lot of new jobs were opened because of the economy.