For more than a thousand years they had maintained an island empire which had developed a very high form of art. Indeed their most important city, Cnossus, on the northern coast of Crete, had been entirely modern in its insistence upon hygiene and comfort. The palace had been properly drained and the houses had been provided with stoves and the Cnossians had been the first people to make a daily use of the hitherto unknown bathtub. The palace of their King had been famous for its winding staircases and its large banqueting hall. The cellars underneath this palace, where the wine and the grain and the olive-oil were stored, had been so vast and had so greatly impressed the first Greek visitors, that they had given rise to the story of the “labyrinth,” the name which we give to a structure with so many complicated passages that it is almost impossible to find our way out, once the front door has closed upon our frightened selves. [Illustration: THE ISLAND-BRIDGES BETWEEN ASIA AND EUROPE] But what finally became of this great Ægean Empire and what caused its sudden downfall, that I can not tell. The Cretans were familiar with the art of writing, but no one has yet been able to decipher their inscriptions. Their history therefore is unknown to us. We have to reconstruct the record of their adventures from the ruins which the Ægeans have left behind. These ruins make it clear that the Ægean world was suddenly conquered by a less civilised race which had recently come from the plains of northern Europe. Unless we are very much mistaken, the savages who were responsible for the destruction of the Cretan and the Ægean civilisation were none other than certain tribes of wandering shepherds who had just taken possession of the rocky peninsula between the Adriatic and the Ægean seas and who are known to us as Greeks. THE GREEKS MEANWHILE THE INDO-EUROPEAN TRIBE OF THE HELLENES WAS TAKING POSSESSION OF GREECE The Pyramids were a thousand years old and were beginning to show the first signs of decay, and Hammurabi, the wise king of Babylon, had been dead and buried several centuries, when a small tribe of shepherds left their homes along the banks of the River Danube and wandered southward in search of fresh pastures. They called themselves Hellenes, after Hellen, the son of Deucalion and Pyrrha. According to the old myths these were the only two human beings who had escaped the great flood, which countless years before had destroyed all the people of the world, when they had grown so wicked that they disgusted Zeus, the mighty God, who lived on Mount Olympus. [Illustration: AN ÆGEAN CITY ON THE GREEK MAINLAND]