Analysis of information sources in references of the Wikipedia article "Quartodecimanism" in English language version.
tell us almost all that we know concerning the paschal controversy in its first stage. A letter of St. Irenæus is among the extracts just referred to, and this shows that the diversity of practice regarding Easter had existed at least from the time of Pope Sixtus (c. 120). Further, Irenaeus states that St. Polycarp, who like the other Asiatics, kept Easter on the fourteenth day of the moon, whatever day of the week that might be, following therein the tradition which he claimed to have derived from St. John the Apostle, came to Rome c. 150 about this very question, but could not be persuaded by Pope Anicetus to relinquish his Quartodeciman observance. The question thus debated was therefore primarily whether Easter was to be kept on a Sunday, or whether Christians should observe the Holy Day of the Jews, the fourteenth of Nisan, which might occur on any day of the week. Those who kept Easter with the Jews were called Quartodecimans or terountes (observants); but even in the time of Pope Victor this usage hardly extended beyond the churches of Asia Minor. After the pope's strong measures the Quartodecimans seem to have gradually dwindled away. Origen in the "Philosophumena" (VIII, xviii) seems to regard them as a mere handful of wrong-headed nonconformists.
