" The Church History" refers to the seminal work by Eusebius of Caesarea, documenting the early history of the Christian church. This text provides a comprehensive account of the church's development from its origins through the early fourth century, including details on key figures, events, and doctrinal developments.
Eusebius of Caesarea (c. AD 263 – 339) also called Eusebius Pamphili, was a Roman historian, exegete and Christian polemicist. He became the Bishop of Caesarea in Palestine about the year 314. Together with Pamphilus, he was a scholar of the Biblical canon. He wrote Demonstrations of the Gospel, Preparations for the Gospel, and On Discrepancies between the Gospels, studies of the Biblical text. As "Father of Church History" he produced the Ecclesiastical History, On the Life of Pamphilus, the Chronicle and On the Martyrs.