by the Emperor Valentinian III (445). But for some time after the Council of Sardica the new prerogative was used with the greatest caution. The Popes of that period use every precaution to make their oracular answers inoffensive. They assure their correspondents that Rome enjoins no novelties; that she does not presume to decide any point on which tradition is silent; that she is merely executing a mandate which general councils have laid upon her. Those who evince respect for her claims are overwhelmed with compliments. A decretal of Innocent I (402-417) begins as follows:-- "Very dear brother, the Church's rules of life and conduct are well known to a priest of your merit and dignity. But since you have urgently inquired of us concerning the rule which the Roman Church prescribes, we bow to your desire and herewith send you our rules of discipline, arranged in order." On the other hand, no opportunity is lost of calling attention to the Roman primacy. Pope Siricius (384-398) writes in one of his letters: "We bear the burdens of all who are oppressed; it is the Apostle Peter who speaks in our person." Through the more confidential and domestic utterances of these Popes there runs a vein of haughty self-assertion. In the homilies of Leo I (440-461) the text _Tu es Petrus_ rings like a trumpet note; here we have the Roman ruler communing with his Roman people, the pride of empire taking a new shape amidst the ruins of that secular empire which the pagan Romans of the past had built up. In the general chaos produced by the barbarian migrations the consequence of the Papacy, as compared with that of other Western sees, was considerably enhanced by various causes: by the ruin of Carthage, the most unsparing of her critics; by the progressive deterioration of the other churches, which was most marked in those provinces where the barbarians were most readily converted; by the rising tide of ignorance, which overwhelmed all rival conceptions of Christendom and blotted out the past history of the Church. So great was this ignorance that Innocent I could claim, without much fear of contradiction, that "no man has founded any church in Italy, Sicily, Gaul, Spain, or Africa, excepting those whom Peter and his successors have ordained as priests." In the Italian peninsula there were three churches--Ravenna, Milan, Aquileia--which obstinately refused to consider themselves mere offshoots from the See of Peter. But the legend struck root and throve, as successive Popes associated themselves with missions to the unconverted tribes and with reforms in the barbarian churches.