But as you have these revisions and these reformations of Roman law, they are more and more written in Greek than Latin, and they do have more and more of a Christian influence. In terms of governance, especially under the Roman Empire, the notion of a province was the main subdivision under which the empire was governed. Once you have Emperor Diocletian come onto the scene, and this is shortly before the time of Constantine, he reformed it, and he set up what is known as a tetrarchy, where you had these two emperors of east and west, and then you would have, essentially, their subordinate emperors. But along with that, he redefined what a province is, so you had smaller provinces, which then would go into diocese, which would then go into prefects, which would then go into a tetrarch. Once you have the start of the Byzantine Empire, they would have elements of this. Constantine, and remember, Constantine wasn't only, the Byzantine wasn't only the emperor of the east. He was emperor of both east and west, but he got rid of the tetrarchy, but he kept Diocletian's notions of these smaller provinces going into diocese, going into prefects.