Columbia subject headings:
Civilization, Medieval--Congresses.
Europe--History--392-814--Congresses.
Europe--Politics and government--476-1492--Congresses.
Germanic peoples--History--Congresses.
Germanic peoples--Migrations--Congresses.
Middle Ages--Congresses.
Harvard subject headings:
Europe--History--476-1492--Congresses.
Princeton subject headings:
Civilization, Medieval--Congresses.
Europe--History--392-814--Congresses.
Europe--Politics and government--476-1492--Congresses.
Germanic peoples--History--Congresses.
Germanic peoples--Migrations--Congresses.
Middle Ages--Congresses.