Columbia subject headings:
Harvard subject headings:
Christianity and politics--Rome--History--Congresses.
Church history--Primitive and early church, ca. 30-600--Congresses.
Constantine I, Emperor of Rome, -337--Congresses.
Constantine I, Emperor of Rome, -337--Religion--Congresses.
Rome--History--Constantine I, the Great, 306-337--Congresses.
Princeton subject headings:
Christianity and politics--Rome--History--Congresses.
Church history--Primitive and early church, ca. 30-600--Congresses.
Constantine I, Emperor of Rome, -337--Congresses.
Constantine I, Emperor of Rome, -337--Religion--Congresses.
Rome--History--Constantine I, the Great, 306-337--Congresses.