master and man in patriotic fellowship. But perhaps more of Venetian
opulence came from the mercantile marine whose sails flapped on the
lagoons, whose galleys took the products of Venice and her mainland
dependencies, and the German and other wares that scaled the Alps, and
carried them to Egypt, Greece, Byzantium, and Asia, and returned
from the East with silks, spices, rugs, drugs, and slaves. The exports
of an average year were valued at 10,000,000 ducats
($250,000,000?); `05113 no other city in Europe could equal this
trade. The Venetian vessels could be seen in a hundred ports, from
Trebizond in the Black Sea to Cadiz, Lisbon, London, Bruges, even in
Iceland. `05114 On the Rialto, the commercial center of Venice,
merchants could be seen from half the globe. Marine insurance
covered this traffic, and a tax on imports and exports was the
mainstay of the state. The annual income of the Venetian government in
1455 was 800,000 ducats ($20,000,000?); in the same year the revenue
of Florence was some 200,000 ducats, of Naples 310,000, of the Papal
States 400,000, of Milan 500,000, of all Christian Spain,
800,000. `05115
This commerce dictated the policies, as it so largely financed the
operations, of the Venetian Republic. It raised to power a
mercantile aristocracy that made itself hereditary and controlled
all the organs of the state. It kept a population of 190,000 (in 1422)
profitably employed, but it left them dependent upon foreign
markets, materials, and food. Imprisoned in her labyrinth, Venice
could feed her people only by importing food; she could supply her
industries only by importing lumber, metals, minerals, leather, cloth;
and she could pay for these imports only by finding markets for her
products and her trade. Dependent on the mainland for food, outlets,
and raw materials, she fought a succession of wars to establish her
control over northeastern Italy; dependent likewise on non-Italian
areas, she was anxious to dominate the regions that supplied her
wants, the markets that took her goods, the routes by which her
vital commerce passed. She became by "manifest destiny" an
imperialistic power.
So the political history of Venice turned on her economic needs.
When the Scafigeri at Verona, or the Carraresi at Padua, or the
Visconti at Milan attempted to spread their sway over northeastern