Medieval theologian Thomas Aquinas dies in Sicily. Aquinas codified Catholic theology in works like Summa Theologica, marking the high point of the medieval scholastic movement. It was Aquinas who mad Aristotle's philosophy "safe" for Christianity.
Aquinas argued that both sense experience (which Aristotle emphasized) and revelation (which Church dogma emphasized) provided truths for human beings. Because both are true, both must always agree rather than contradict.
Sometimes a truth can only be known through one or the other, but even such independent truths will never conflict with one another. This recognition that empirical senses and reason can arrive at the same truths as revelation will allow for the development of "natural theology," or attempts to prove the existence of God through empirical facts and nature.