Lastly, he discusses the various cycles in use at different periods, and although he found much diversity with various nations, "you," he says, "have one of your own quite different from them all. First, there is the Paschal cycle introduced by St. Patrick,[199] our spiritual Father (Papa nostra), according to which the Æquinox was assigned to the 21st of March, and Easter day ranged from the 14th to the 21st day of the moon." He then refers to the cycles of Anatolius, Theophilus, Dionysius, Cyril, Morinus, Augustine, Victorius, and lastly he mentions the cycle of Pachomius to whom an angel revealed the proper way to calculate Easter--cycle meaning, it would seem, the special manner of calculating Easter peculiar to each. He then refers to the cycle of nineteen years adopted by the Nicene Fathers, calling it by its Greek name--ἑννεά-καιδεκατήριδα--which, he adds, might enable them to ascertain the date of Easter with sufficient accuracy. "It is, as I find, quite different from yours in its kalends, its bissextile, in its epact, in its fourteenth moon, in its first month, and in its equinox." This is an important passage, because it shows that the Irish cycle was in every respect different from the cycle of nineteen years as adopted by the Church of Alexandria. He then refers to St. Cyril, and the cycle of Victoricius, clearly showing that he was familiar with the entire subject, and probably had in his hands some works which we no longer possess. After referring to the Synod of the Campus Lene, as explained above, and the appeal to Rome in accordance with the ancient statute (mandatum) of the Irish Church, he goes on to say that according to the synodical decree[200] all such "causae majores ad caput urbium sunt referenda." This refers to the decree of the Synod of Patrick, Auxilius, and Iserninus, bidding the Irish prelates if any cause of disunion arose, to go to the place which the Lord hath chosen (to Rome, the 'caput urbium') for the decision of these more important causes, "so we sent there certain wise and humble men, whom we knew, as children to their mother." And they returned in the third year, and told us what they had seen and heard, and how in the Church of St. Peter, the common hospice of all the faithful, Greeks and Hebrews, Scythians and Egyptians--"all celebrated Easter on the same day, which differed an entire month from our own, and we saw with our own eyes many miracles wrought by the relics of the saints and martyrs which they had carried home with them from the holy city." In conclusion, he adds that he had not written to attack them but to defend the truth; he apologises for any wrong or harsh words that might have fallen from him, and in the last sentence implores on them all the strong blessing of the Holy Trinity to guard them from all evil.