May 30, 339: Eusebius dies at age 74. Author of the 10-volume Ecclesiastical History, he is called the father of church history. In his day, though, he was as much a maker of history as a recorder. At the Council of Nicea, he argued for peace between the heretical Arians and Orthodox leaders like Athanasius. When Arianism became hugely popular after the Council, Eusebius was one of the people to depose Athanasius. Though he wasn't an Arian himself, he strongly opposed anti-Arianism (see issue ...