May 8, 2014
From Chapter 23, Book III of Eusebius' Church History:
Listen to a tale, which is not a mere tale, but a narrative concerning John the apostle, which has been handed down and treasured up in memory. For when, after the tyrant’s death, he returned from the isle of Patmos to Ephesus, he went away upon their invitation to the neighboring territories of the Gentiles, to appoint bishops in some places, in other places to set in order whole churches, elsewhere to choose to the ministry some one of those that were pointed out by the Spirit.