Columbia subject headings:
America--Discovery and exploration--Congresses.
Asia--Discovery and exploration--Congresses.
Florence (Italy)--Civilization--American influences--Congresses.
Florence (Italy)--Relations--United States--Congresses.
Merchants--Italy--Florence--History--Congresses.
United States--Civilization--Italian influences--Congresses.
United States--Relations--Italy--Florence--Congresses.
Vespucci, Amerigo, 1451-1512--Congresses.
Harvard subject headings:
America--Discovery and exploration--Congresses.
America--Discovery and exploration--Italian--Congresses.
Asia--Discovery and exploration--Congresses.
Florence (Italy)--Civilization--American influences--Congresses.
Florence (Italy)--Foreign relations--Congresses.
Florence (Italy)--Relations--United States--Congresses.
Merchants--Italy--Florence--History--16th century--Congresses.
Merchants--Italy--Florence--History--Congresses.
Merchants--Italy--Florence--History--To 1500--Congresses.
United States--Civilization--Italian influences--Congresses.
United States--Relations--Italy--Florence--Congresses.
Vespucci, Amerigo, 1451-1512--Congresses.
Princeton subject headings:
America--Discovery and exploration--Congresses.
Asia--Discovery and exploration--Congresses.
Florence (Italy)--Civilization--American influences--Congresses.
Florence (Italy)--Relations--United States--Congresses.
Merchants--Italy--Florence--History--Congresses.
United States--Civilization--Italian influences--Congresses.
United States--Relations--Italy--Florence--Congresses.
Vespucci, Amerigo, 1451-1512--Congresses.