Bishop Eusebius (c. AD 260-339), a learned scholar who lived most of his life in Caesarea in Palestine, broke new ground in writing the History and provided a model for all later ecclesiastical historians. In tracing the history of the Church from the time of Christ to the Great Persecution at the beginning of the fourth century and ending with the conversion of the Emperor Constantine, his aim was to show the purity and continuity of the doctrinal tradition of Christianity and its struggle against persecutors and heretics, and he supported his account by extensive quotations from original sources.

This edition of G. A. Williamson's clear, fluid translation is accompanied by an introduction by Andrew Louth discussing the life and works of Eusebius, together with notes, bibliography, a map of the world of Eusebius, and brief biographies of the figures who appear in the work.