Summary
Highlights
The Columbian Exchange was the transfer of diseases, food plants, people, and animals between the Eastern and Western Hemispheres. It was caused by European states sponsoring sea-based explorations to find water routes to the East Indies, which led to Christopher Columbus encountering the Americas, thus initiating contact between the Old World and the New World.
Europeans brought diseases like malaria, measles, and smallpox to the Americas. Indigenous populations, lacking immunity, suffered massive devastation, with smallpox alone killing up to 90% of people in some areas, leading to what was known as 'the Great Dying.' This demographic catastrophe made European conquest easier.
Europeans introduced wheat, grapes, olives, bananas, and sugar to the Americas. Conversely, New World crops like maize, potatoes, and manioc were transferred to Europe, diversifying diets and leading to population growth. Some New World foods became cash crops on European-controlled plantations in the Americas, worked by coerced laborers like enslaved Africans, who also introduced foods like okra and rice.
European domesticated animals such as pigs, sheep, and cattle were introduced to the Americas, where they multiplied rapidly due to a lack of natural predators, forming the basis for ranching economies. However, these animals also caused environmental problems like erosion. The introduction of horses, however, significantly changed indigenous societies, allowing for more effective buffalo hunting.