The significant event catalyzed by the discovery of the New World was the Columbian Exchange. This refers to the widespread transfer of animals, plants, culture, human populations, technology, and diseases between the Americas and the Old World, following Christopher Columbus's voyages beginning in 1492. The exchange dramatically altered the diets and agricultural practices of both continents. Crops such as potatoes, maize, and tomatoes were introduced to Europe, while horses and cattle were brought to the Americas. However, it also had devastating consequences, including the spread of diseases that decimated indigenous populations. The Columbian Exchange fundamentally reshaped global history, economies, and societies.