Columbia subject headings:
Harvard subject headings:
Demonstrations--Germany--Rhineland--History--20th century.
Rhineland (Germany)--Anniversaries, etc.
Rhineland (Germany)--History--Separatist movement, 1918-1924.
Rhineland (Germany)--Politics and government.
Princeton subject headings:
Festivals--Germany--Rhineland--History--20th century.
Festivals--Political aspects--Germany--Rhineland.
Rhineland (Germany)--History--20th century.
Rhineland (Germany)--Social life and customs.