Columbia subject headings:
Cities and towns, Ancient--Congresses.
City planning--History--To 1500--Congresses.
Public spaces--History--To 1500--Congresses.
Social interaction--History--To 1500--Congresses.
Sociology, Urban--History--To 1500--Congresses.
Space (Architecture)--History--To 1500--Congresses.
Harvard subject headings:
Cities and towns, Ancient--Congresses.
City planning--History--To 1500--Congresses.
Public spaces--History--To 1500--Congresses.
Social interaction--History--To 1500--Congresses.
Sociology, Urban--History--To 1500--Congresses.
Space (Architecture)--History--To 1500--Congresses.
Princeton subject headings: