On October 12, 1492, Christopher Columbus, an Italian navigator sailing for the Spanish Crown, landed in the Caribbean, believing he had reached the East Indies. This event initiated the 'Columbian Exchange,' the vast transfer of plants, animals, culture, human populations, and diseases between the New World (Americas) and the Old World (Afro-Eurasia). While Columbus was not the first European to reach the Americas (the Norse had arrived centuries earlier), his voyage triggered permanent European colonization and the global integration of the world's economies. The consequences were profound and devastating: the introduction of European diseases decimated indigenous populations, and the established colonies eventually gave rise to the Trans-Atlantic slave trade. Conversely, New World crops like potatoes, corn, and tomatoes revolutionized the diets of people in Europe, Asia, and Africa, leading to global population growth.