Columbia subject headings:
Church history--Middle Ages, 600-1500.
Enthusiasm--Religious aspects--Christianity.
Harvard subject headings:
Christian saints--Cult--History--To 1500.
Church history--Middle Ages, 600-1500
Crusades.
Enthusiasm--Religious aspects--Christanity.
Revivals--Europe--History--To 1500.
Princeton subject headings:
Church history--Middle Ages, 600-1500.
Enthusiasm--Religious aspects--Catholic Church--History--To 1500.
Enthusiasm--Religious aspects--Christanity--History--To 1500.