Columbia subject headings:
Harvard subject headings:
Germany--History--1789-1900--Congresses.
National characteristics, German--Congresses.
Nationalism--Germany--History--19th century--Congresses.
Princeton subject headings:
Europe, Central--History--19th century--Congresses.
Europe, Central--History--20th century--Congresses.
International relations and culture--Europe, Central--History--Congresses.
International relations and culture--Germany--History--Congresses.
National characteristics, Central European--History--Congresses.
National characteristics, German--History--Congresses.