This document discusses the impacts of contact between the Old World and New World. It describes Ferdinand and Isabella of Spain who funded Christopher Columbus' voyage and their religious authority. It also mentions King Philip II of Spain and Queen Isabella's struggles over whether to allow slavery. The document notes that contact brought European religion to the Americas and that Spaniards adopted Native religious icons like La Virgen de Guadalupe to help convert people. It concludes that Spain created a caste system to maintain power in the New World.