Christendom no longer exists, but, nevertheless, Catholics must be active members of their respective societies and agents of justice in a world bereft of moral values. We must know history, not merely current events. European history, after the conversion of the nations, was the history of the Church. This history is certainly important to know. But, as Americans, we cannot afford to be ignorant of our own history. The virtue of patriotism, which is actually a natural manifestation of the su...