The Old World refers to Europe, Africa, and Asia. The New World, Mundus Novus in Latin, refers to the Americas. The Age of Discovery, which led to the New World, was in many ways caused by men looking for silks, spices, and new crops. Another reason was the expansion of the Catholic faith in an effort to save souls. Of course, many men, such as Prince Henry the Navigator, were looking for adventure. The Europeans were able to conquer many societies in the New World through the introduction of disease and weapons such as guns and gun powder. This technology, which came from China, changed the face of the globe. Having used it against each other, Europeans were more than willing to turn it on the unsuspecting inhabitants of the New World. Before long, the native inhabitants would also take up these weapons. However, not in time to save the Aztecs, the Incas and the other early victims of the Age of Exploration.