The exact date of the rise of Montanism cannot be determined. The reports which we have of the movement vary greatly in their chronology. We have no means of fixing the date of the proconsulship of the Gratus referred to here, and thus the most exact and reliable statement which we have does not help us. In his Chron. Eusebius fixes the rise of the movement in the year 172, and it is possible that this statement was based upon a knowledge of the time of Gratus’ proconsulship. If so, it possesses considerable weight. The first notice we have of a knowledge of the movement in the West is in connection with the martyrs of Lyons, who in the year 177 (see Introd. to this book, note 3) were solicited to use their influence with the bishop of Rome in favor of the Montanists (see above, chap. 3, note 6). This goes to confirm the approximate accuracy of the date given by Eusebius, for we should expect that the movement cannot have attracted public notice in the East very many years before it was heard of in Gaul, the home of many Christians from Asia Minor. Epiphanius (Hær. XLVIII.) gives the nineteenth year of Antoninus Pius (156–157) as the date of its beginning, but Epiphanius’ figures are very confused and contradictory, and little reliance can be placed upon them in this connection. At the same time Montanus must have begun his prophesying some years before his teaching spread over Asia Minor and began to agitate the churches and alarm the bishops, and therefore it is probable that Montanism had a beginning some years before the date given by Eusebius; in fact, it is not impossible that Montanus may have begun his work before the end of the reign of Antoninus Pius.