I have alluded to the fact that the enormous proportion of ancient Classical works we have today can be attributed to intense phases of translation and transcription during the Carolingian Renaissance, the Abbassid House of Wisdom, and the efforts of Byzantine men of letters such as Constantine Porphyrogennetos. The reason for these efforts was that in part these ancient literary works were the products of natural predecessor civilizations, to whom the medieval West, Byzantium, and Islam, owed a great deal. The memory of Plato and Aristotle, Caesar and Darius, persisted down to their day.