History of the Sabbath and First Day of the Week - John N. Andrews

Thus the churches of Asia Minor had the
festival from Polycarp who, as Eusebius states the
claim of Polycarp, had "observed it with John the
disciple of our Lord, and the rest of the apostles
with whom he associated."[20] Socrates says of
them that they maintain that this observance "was
delivered to them by the apostle John."[21]
Anatolius says of these Asiatic Christians that they
received "the rule from an unimpeachable
authority, to wit, the evangelist John."[22]
Nor was this all. The western churches also,
with the church of Rome at their head, were
strenuous observers of the Passover festival. They
also traced the festival to the apostles. Thus
Socrates says of them: "The Romans and those in
the western parts assure us that their usage
originated with the apostles Peter and Paul."[23]
But he says these parties cannot prove this by
written testimony. Sozomen says of the Romans,
with respect to the Passover festival, that they
"have never deviated from their original usage in
this particular; the custom having been handed
down to them by the holy apostles Peter and
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