Augustine in chapter seven, book XX of The City of God writes for the first time about the Apocalypse. This was well after Jerome finished the Vulgate, a Latin translation of the bible. Before this the bible was not really defined. Chrysostom was in Ephesus for three months at the beginning of the fifth century replacing exactly seven bishops. Before this the Apocalypse was not really accepted as being bible worthy. Visiting Patmos, where John the Apostle is said to have wrote it, must have been hard to resist for the Patriarch of Constantinople. What did he find? What did he do with it?
Watch for more pieces that fit. Blessed is the one who looks.