"The magnitude of these shattering changes can perhaps be grasped by imagining that the invasion had been in the reverse direction and that the Aztecs or Incas had arrived suddenly in Europe, imposed their culture and calendar, outlawed Christianity, set up sacrificial altars for thousands of victims in Madrid and Amsterdam, unwittingly spread disease on a scale that virtually matched the Black Death, melted down the golden images of Christ and the saints, threw stones at the stained-glass windows and converted the cathedral aisles into arms or food warehouses, toppled unfamiliar Greek statues and Roman columns, and carried home to the Mexican and Peruvian highlands their loot in precious metals along with slaves, indentured servants and other human trophies."