Book 2 — Chapter 24 — Annianus Succeeds Marqos in Alexandria
In the eighth year of Nero, Eusebius says, Annianus succeeds Marqos as leader of the Alexandrian assembly. The notice is brief but important to Eusebius's method: he continually synchronizes local succession lists with imperial reigns. Alexandria, Rome, Antioch, and Yerushalayim become his principal institutional timelines.