Eusebius is best remembered for his celebrated Ecclesiastical History, which provides a history of Christianity from the apostolic age down to the early fourth century. It is primarily this work that earned Eusebius the title of Father of Church History. Eusebius was born in Palestine about A. D. 264. Beginning about 315, he was made bishop of Caesarea. His Praeparatio Evanglica contains valuable extracts from the ancient philosophers. His Chronica is likewise valuable to students of ancient history. Theologically, Eusebius is remembered for his retelling of Christian history to include a positive role for the admired Roman emperors as instruments of God's will. Eusebius died about 340.