Columbia subject headings:
Harvard subject headings:
Diffusion of innovations--Europe--History.
Europe--Commerce--History
International trade--History
Trade routes--Europe--History.
Trade routes--History.
Princeton subject headings:
Commerce--Europe--History--To 1800.
Culture diffusion--Europe--History--To 1800.
International trade--History--To 1800.
Material culture--Europe--History--To 1800.