What was one way the Crusades changed Christian Europe?

One significant way the Crusades changed Christian Europe was by fostering increased trade and cultural exchange between Europe and the East. The Crusaders returned with new goods, ideas, and technologies, which stimulated economic growth and spurred the rise of a merchant class. Additionally, the exposure to different cultures and philosophies contributed to the intellectual revival of the European Renaissance. This period saw a shift in focus towards individualism and secular knowledge, reshaping European society and thought.