Columbia subject headings:
Harvard subject headings:
Identity (Psychology)--Religious aspects--Congresses.
Religion and sociology--History--Congresses.
Princeton subject headings:
Church history--Middle Ages, 600-1500--Congresses.
Religion and sociology--History--To 1500--Congresses.
Religious life--History--To 1500--Congresses.
Symbolism--Religious aspects--Congresses.