Columbia subject headings:
History, Ancient--Congresses.
Ideology--Congresses.
Marginality, Social--Congresses.
Sports--History--Congresses.
Harvard subject headings:
Civilization, Ancient--Congresses
History, Ancient--Congresses
Ideology--Congresses
Marginality, Social--Congresses.
Sports--History--Congresses.
Princeton subject headings:
History, Ancient--Congresses.
Ideology--Congresses.
Marginality, Social--Congresses.
Sports--History--Congresses.