Columbia subject headings:
Harvard subject headings:
Christianity and politics--Balkan Peninsula--History--20th century.
Christianity and politics--Europe, Eastern--History--20th century.
Collective memory--Balkan Peninsula--History.
Collective memory--Europe, Eastern--History.
Europe, Eastern--History--20th century--Congresses.
Nationalism--Balkan Peninsula--History--20th century.
Nationalism--Europe, Eastern--History--20th century.
Transnationalism--History--20th century.
Princeton subject headings:
Collective memory--Europe, Eastern--Congresses.
Europe, Eastern--History--20th century--Congresses.
Historic sites--Europe, Eastern--Congresses.
Historiography--Europe, Eastern--Congresses.