Columbia subject headings:
Colonization--History.
Mediterranean Region--Commerce--History.
Mediterranean Region--History--476-1517.
Middle Ages.
Harvard subject headings:
Colonization--History.
Mediterranean Region--Commerce--History.
Mediterranean Region--History--476-1517.
Middle Ages
Princeton subject headings:
Colonization--History.
Mediterranean Region--Commerce--History.
Mediterranean Region--History--476-1517.
Middle Ages.