Eusebius' Ecclesiastical History

A foundational work of early Christian history, Eusebius of Caesarea's Ecclesiastical History traces the development of the Christian church from its apostolic origins through the reign of Constantine. Written in the fourth century, this comprehensive chronicle documents the lives of church leaders, the spread of Christianity across the Roman Empire, and the challenges faced by believers during periods of persecution. Essential reading for understanding the formation of Christian doctrine, church governance, and the historical context of early Christianity.