A more extraordinary and more disgraceful phenomenon was the growth of piracy, with the skirts of which Caesar had come in contact at Pharmacusa. The Romans had become masters of the world, only that the sea from one end of their dominions to the other should be patrolled by organized rovers. For many years, as Roman commerce extended, the Mediterranean had become a profitable field of enterprise for those gentry. From every country which they had overrun or occupied the conquests of the Romans had let loose swarms of restless patriots who, if they could not save the liberties of their own countries, could prey upon the oppressor. Illyrians from the Adriatic, Greeks from the islands and the Asiatic ports, Syrians, Egyptians, Africans, Spaniards, Gauls, and disaffected Italians, trained many of them to the sea from their childhood, took to the water in their light galleys with all the world before them. Under most circumstances society is protected against thieves by their inability to combine. But the pirates of the Mediterranean had learnt from the Romans the advantage of union, and had drifted into a vast confederation. Cilicia was their head-quarters. Servilius had checked them for a time, but the Roman Senate was too eager for a revenue, and the Roman governors and farmers of the taxes were too bent upon filling their private purses, to allow fleets to be maintained in the provincial harbors adequate to keep the peace. When Servilius retired, the pirates reoccupied their old haunts. The Cilician forests furnished them with ship timber. The mountain gorges provided inaccessible storehouses for plunder. Crete was completely in their hands also, and they had secret friends along the entire Mediterranean shores. They grew at last into a thousand sail, divided into squadrons under separate commanders. They were admirably armed. They roved over the waters at their pleasure, attacking islands or commercial ports, plundering temples and warehouses, arresting every trading vessel they encountered, till at last no Roman could go abroad on business save during the winter storms, when the sea was comparatively clear. They flaunted their sails in front of Ostia itself; they landed in their boats at the villas on the Italian coast, carrying off lords and ladies, and holding them to ransom. They levied black-mail at their pleasure. The wretched provincials had paid their taxes to Rome in exchange for promised defence, and no defence was provided.[4] The revenue which ought to have been spent on the protection of the Empire a few patricians were dividing among themselves. The pirates had even marts in different islands, where their prisoners were sold to the slave-dealers; and for fifteen years nothing was done or even attempted to put an end to so preposterous an enormity. The ease with which these buccaneers of the old world were eventually suppressed proved conclusively that they existed by connivance.