Here in fact lies the secret of Venetian history, the one key by which it is possible to understand the strange riddle of the Republic. For thirteen centuries Venice lay moored as it were off the coast of Western Europe, without political analogue or social parallel. Its patriciate, its people, its government were not what government or people or patriciate were in other countries of Western Christendom. The difference lay not in any peculiar institutions which it had developed, or in any novel form of social or administrative order which it had invented, but in the very origin of the State itself. We see this the better if we turn from Venice to our own homeland. The same age saw the birth of the two great maritime Powers of modern Europe, for the settlements of the English in Britain cover the same century with those of the Roman exiles in the Venetian Lagoon. But the English colonization was the establishment of a purely Teutonic State on the wreck of Rome, while the Venetian was the establishment of a purely Roman State in the face of the Teuton. Venice in its origin was simply the Imperial province of Venetia floated across to the islands of the shore. Before the successive waves of the northern inroad the citizens of the coast fled to the sandbanks which had long served them as gardens or merchant-ports. The "Chair of Attila," the rough stone seat beside the church of San Fosco, preserves the memory of one destroyer before whom a third part of the people of Altinum fled to Torcello and the islands around. Their city--even materially--passed with them. The new houses were built from the ruins of the old. The very stones of Altinum served for the "New Altinum" which arose on the desolate isle, and inscriptions, pillars, capitals came in the track of the exiles across the lagoon to be worked into the fabric of its cathedral.