Columbia subject headings:
Baltic Sea Region--Ethnic relations--Congresses.
Jews--Baltic Sea Region--History--To 1500--Congresses.
Jews--Scandinavia--History--To 1500--Congresses.
Muslims--Baltic Sea Region--History--To 1500--Congresses.
Muslims--Scandinavia--History--To 1500--Congresses.
Scandinavia--Ethnic relations--Congresses.
Harvard subject headings:
Baltic Sea Region--Ethnic relations--Congresses.
Christians--Baltic Sea Region--History--To 1500--Congresses.
Christians--Scandinavia--History--To 1500--Congresses.
Jews--Baltic Sea Region--History--To 1500--Congresses.
Jews--Scandinavia--History--To 1500--Congresses.
Muslims--Baltic Sea Region--History--To 1500--Congresses.
Muslims--Scandinavia--History--To 1500--Congresses.
Scandinavia--Ethnic relations--Congresses.
Princeton subject headings: