22. Rome having, at length, obtained the complete dominion of the Mediterranean Sea, and the countries bordering upon it, as well as that of many others more distant, and less easy of access, became the great mart for the sale of merchandise of every description, from all parts of the known world. For the various commodities brought to the city, the Romans paid gold and silver; as they had nothing else to export in return. The money which they had exacted as tribute, or which they had obtained by plunder, was thus returned to the nations from which it had been taken.
23. The subjected provinces continued to pour their choicest productions into Rome, as long as she retained the control of the empire; and thus they contributed to enervate, by the many luxuries they afforded, the power by which they had been subdued. The eternal city, as she is sometimes called, in the days of her extensive dominion, contained about three millions of inhabitants; and, although this immense population was chiefly supplied by importations, the Romans never esteemed the character of a merchant. They despised the peaceful pursuits of industry, whilst they regarded it honorable to attack without provocation, and plunder without remorse, the weaker nations of the earth.
24. In the year 328 of the Christian era, Byzantium was made the seat of government of the Roman empire by Constantine, who, with a view of perpetuating his own name, called his new capital Constantinople. However necessary this removal may have been, to keep in subjugation the eastern provinces, it was fatal to the security of the western division. The rivalry between the two cities produced frequent contests for dominion; and these, together with the general corruption and effeminacy of the people themselves, rendered it impossible to resist the repeated and fierce invasions of the barbarous people from the northern parts of Europe.
25. These invasions commenced in the latter part of the fourth century; and, in less than two hundred years, a great portion of the inhabitants was destroyed, and the whole Western empire was completely subverted. The conquerors were too barbarous to encourage or protect commerce; and, like the arts of peace and civilization generally, it sunk, with few exceptions, amid the general ruin.
26. The empire of Constantinople, or, as it is usually called, the Eastern empire, continued in existence several centuries after the Western empire had been overrun; and commerce continued to flow, for a considerable time, through some of its former channels to the capital. At length, the Indian trade, which had so long been carried on chiefly through Egypt by the Red Sea, was changed to a more northern route, through Persia.
27. Soon after the commencement of the pretended mission of Mohammed, or Mahomet, in 609 of the Christian era, the power of the Arabians, since called Saracens, began to rise. The followers of the Prophet, impelled by religious zeal, and allured by plunder, in less than 150 years extended their dominion almost to the borders of China on the one side, and to the Mediterranean and Atlantic on the other. The trade of the East, of course, fell into their hands; and they continued to enjoy it, until they, in turn, were subdued by the Turks.
28. So great was the prejudice of the Christians against the followers of Mohammed, that, for a long time, it was considered heretical for the former to trade with the latter; but the Saracens having a vast extent of territory, and having control of the Mediterranean and Red Seas, as well as of the Persian Gulf, carried on an extensive trade among themselves.
29. The first European power which rose to commercial eminence, after the destruction of the Western empire, was the republic of Venice. This important city owed its origin to some fugitives, who fled for their lives to a number of small islands in the Adriatic Sea, during the invasion of Italy by the Huns, under Attila, in the year 452.
30. The houses first built by the refugees, were constructed of mud and seagrass; and, so insignificant were they in their appearance, that a writer of that period compares them to a collection of the nests of water-fowls. The number of these islands, on which so splendid a city was afterwards built, was, according to some, seventy-two; but, according to others, ninety, or even one hundred and fifty. For a considerable time, the distinction of rich and poor was not known; for all lived upon the same fish-diet, and in houses of similar form and materials.
31. In less than a century, the inhabitants of these islands had established a regular government; and, in the year 732, we find them venturing beyond the Adriatic into the Mediterranean, even as far as Constantinople, trading in silks, purple draperies, and Indian commodities. In 813, the French commenced trading to Alexandria, and, in a few years, the Venetians followed their example, in despite of the ecclesiastical prohibitions against intercourse with the followers of Mohammed. In the tenth century, Amalfi, Pisa, Genoa, and Florence, began to rival Venice in trade.