Polycarp’s martyrdom occurred in Smyrna, not during the reign of Marcus Aurelius, as Eusebius says, but during the reign of Antoninus Pius, between 154 and 156 (probably in 155). This has been proved by Waddington in his Memoire sur la Chronologie de la vie du rheteur Ælius Aristide (in Mem. de l’acad. des inscript. et belles lettres, Tom. XXVI., part II., 1867, p. 232 sq.’ see, also, his Fastes des provinces Asiatiques, 1872, p. 219 sq.), and the date is now almost universally accepted (for example, by Renan, Ewald, Hilgenfeld, Lightfoot, Harnack, &c.). But the Chron. of Eusebius seems to put the martyrdom in the seventh year of Marcus Aurelius (166–167 a.d.), and this is the date given by Jerome and others, who based their chronology upon Eusebius, and was commonly accepted until Waddington proved it false. Lightfoot, however, shows that Eusebius did not mean to assign Polycarp’s death to the seventh year of Marcus Aurelius, but that he meant only to place it in the reign of that emperor, and did not pretend to fix the year. How he made the mistake of assigning it to the wrong emperor we do not know, but knowing Eusebius’ common confusion of the various emperors that bore the name of Antonine, we are not surprised at his error at this point. For the best and most recent discussion of this whole subject, see Lightfoot’s Ignatius, I. p. 629 sq. Since Waddington published his researches, Wieseler (in his Christenverfolgungen, 1878, p. 34–87) and Keim (Aus dem Urchristenthum, 1878, p. 92–133) have ventured to dispute his conclusions and to advocate the old date (167), but their arguments are worthless, and have been completely refuted by Lightfoot (ibid. p. 655 sq.).