Columbia subject headings:
History, Ancient--Congresses.
Hēgemonia (The Greek word)--Congresses.
International relations--Congresses.
Monarchy--History--Congresses.
Harvard subject headings:
History, Ancient--Congresses
Hēgemonia (The Greek word)--Congresses.
International relations--Congresses
Monarchy--History--Congresses.
Princeton subject headings:
Greece--History--Congresses.
History, Ancient--Congresses.
International relations--History--Congresses.