Columbia subject headings:
Civilization, Greco-Roman--Congresses.
Emigration and immigration law--Mediterranean Region--History--To 1500--Congresses.
Hospitality--Mediterranean Region--History--To 1500--Congresses.
Visitors, Foreign--Mediterranean Region--Social conditions--Congresses.
Harvard subject headings:
Princeton subject headings:
Civilization, Greco-Roman--Congresses.
Emigration and immigration law--Mediterranean Region--History--To 1500--Congresses.
Hospitality--Mediterranean Region--History--To 1500--Congresses.
Visitors, Foreign--Mediterranean Region--Social conditions--Congresses.