Columbia subject headings:
Constantine I, Emperor of Rome, -337.
Emperors--Rome--Biography.
Rome--History--Constantine I, the Great, 306-337.
Harvard subject headings:
Christianity and politics--Rome--History.
Church history--Primitive and early church, ca. 30-600
Church history--Primitive and early church, ca. 30-600.
Constantine I, Emperor of Rome, -337
Emperors--Rome--Biography
Religion and state--Rome.
Rome--History--Constantine I, the Great, 306-337.
Rome--Kings and rulers--Religious aspects.
Princeton subject headings:
Christianity and politics--Rome--History.
Church history--Primitive and early church, ca. 30-600.
Constantine I, Emperor of Rome, -337.
Emperors--Rome--Biography.
Religion and state--Rome.
Rome--History--Constantine I, the Great, 306-337.
Rome--Kings and rulers--Religious aspects.