Where Chapters 3 to 6 consider various aspects of Eusebius’ construction of a model of Christian authority, Chapter 7 argues that these are in turn building blocks for Eusebius’ construction of the Christian collective, the church. As prominent in the History as these leaders are the ties formed between them. These are created via pedagogical succession and epistolary correspondence, since the former link Christian leaders in time and the latter in space. Both had been to varying degrees emphasised by earlier Christian writers, particularly, as ever, the Alexandrians. But with them Eusebius did what no earlier writer had done – construct a picture of a unified, unchanging, and Empire-wide church, the same in the first century as in the fourth, from Lyons to Edessa. Key was his depiction of church councils as the ‘hubs’ of this pedagogical-epistolary network, establishing blanket policy across centuries and provinces. Eusebius’ picture distorts the size and coherence of the earliest church, in part as a more effective response than any previously offered to elite critiques of Christianity as fractured, divided, and impermanent, and as a powerful statement about the place of Christianity in the early fourth century.