Eusebius

Saint

Eusebius of Caesarea
Saint; Eusebius of Caesarea
	6th century Syriac portrait of St. Eusebius of Caesarea from the Rabbula Gospels
The Father of Church History
Born	c. 260–265; Caesarea Maritima, Syria Palaestina, Roman Empire
Died	30 May 339 (aged 74–79); Caesarea Maritima, Syria Palaestina, Roman Empire
Venerated in	Oriental Orthodox Church
Feast	30 May (ancient Syrian Church); 29 February (Syrian Orthodox); 21 June (Roman Catholic; Suppressed by Pope Gregory XIII);
Influences	Origen, St. Pamphilus of Caesarea, St. Constantine the Great, Sextus Julius Africanus, Philo, Plato
Influenced	St. Palladius of Galatia, St. Basil the Great, Rufinus of Aquileia, St. Theodoret of Cyrus, Socrates of Constantinople, Sozomen, Evagrius Scholasticus, Gelasius of Cyzicus, Michael the Syrian, St. Jerome, Philostorgius, Victorius of Aquitaine, St. Pope Gelasius I, Pope Pelagius II, Henri Valois, George Bull, William Cave, Samuel Lee, J.B. Lightfoot, Henry Wace
	Writing career
Occupation	Bishop, historian, theologian
Period	Constantinian dynasty
Notable works	Ecclesiastical History, On the Life of Pamphilus, Chronicle, On the Martyrs

Eusebius of Caesarea (c. AD 260/265 – 30 May AD 339), also known as Eusebius Pamphilius, was a historian of Christianity, exegete, and Christian polemicist from the Roman province of Syria Palaestina. In about AD 314 he became the bishop of Caesarea Maritima.

Together with Pamphilus, Eusebius was a scholar of the biblical canon and is regarded as one of the most learned Christians during late antiquity. He wrote the Demonstrations of the Gospel, Preparations for the Gospel and On Discrepancies between the Gospels, studies of the biblical text. His work Onomasticon is an early geographical lexicon of places in the Holy Land mentioned in the Bible. As "Father of Church History" (not to be confused with the title of Church Father), he produced the Ecclesiastical History, On the Life of Pamphilus, the Chronicle and On the Martyrs. He also produced a biographical work on Constantine the Great, the first Christian Roman emperor, who was Augustus between AD 306 and AD 337.