The barbarians had burned as lustily in Italy as elsewhere, but there had been so much to destroy that more had been able to survive. In the second place, the Pope lived in Italy and as the head of a vast political machine, which owned land and serfs and buildings and forests and rivers and conducted courts of law, he was in constant receipt of a great deal of money. The Papal authorities had to be paid in gold and silver as did the merchants and ship-owners of Venice and Genoa. The cows and the eggs and the horses and all the other agricultural products of the north and the west must be changed into actual cash before the debt could be paid in the distant city of Rome. This made Italy the one country where there was a comparative abundance of gold and silver. Finally, during the Crusades, the Italian cities had become the point of embarkation for the Crusaders and had profiteered to an almost unbelievable extent.
And after the Crusades had come to an end, these same Italian cities remained the distributing centres for those Oriental goods upon which the people of Europe had come to depend during the time they had spent in the near east.
Of these towns, few were as famous as Venice. Venice was a republic built upon a mud bank. Thither people from the mainland had fled during the invasions of the barbarians in the fourth century. Surrounded on all sides by the sea they had engaged in the business of salt-making. Salt had been very scarce during the Middle Ages, and the price had been high. For hundreds of years Venice had enjoyed a monopoly of this indispensable table commodity (I say indispensable, because people, like sheep, fall ill unless they get a certain amount of salt in their food). The people had used this monopoly to increase the power of their city. At times they had even dared to defy the power of the Popes. The town had grown rich and had begun to build ships, which engaged in trade with the Orient. During the Crusades, these ships were used to carry passengers to the Holy Land, and when the passengers could not pay for their tickets in cash, they were obliged to help the Venetians who were for ever increasing their colonies in the Ægean Sea, in Asia Minor and in Egypt.