Whereupon Deiokes had a great palace built, and enrolled a bodyguard to attend upon him. He next called upon his subjects to leave their villages, and "the Medes, obedient to his orders, built the city now called Ecbatana, the walls of which are of great size and strength, rising in circles one within the other. The walls are concentric, and so arranged that they rise one above the other by the height of their battlements. The nature of the ground, which is a gentle hill, favoured this arrangement. The number of the circles is seven, the royal palace and the treasuries standing within the last. The circuit of the outer wall is very nearly the same as that of Athens. Of this wall the battlements are white, of the next black, of the third scarlet, of the fourth blue, of the fifth orange. The two last have their battlements coated respectively with silver and gold. All these fortifications Deiokes caused to be raised for himself and his own palace; the people he required to dwell outside the citadel. When the town was finished, he established a rule that no one should have direct access to the king, but that all communications should pass through the hands of messengers. It was declared to be unseemly for any one to see the king face to face, or to laugh or spit in his presence. This ceremonial Deiokes established for his own security, fearing lest his compeers who had been brought up with him, and were of as good family and parts as he, should be vexed at the sight of him and conspire against him: he thought that by rendering himself invisible to his vassals they would in time come to regard him as quite a different sort of being from themselves." Two or three facts stand out from this legendary background. It is probable that Deiokes was an actual person; that the empire of the Medes first took shape under his auspices; that he formed an important kingdom at the foot of Mount Elvend, and founded Ecbatana the Great, or, at at any rate, helped to raise it to the rank of a capital.* * The existence of Deiokes has been called in question by Grote and by the Rawlinsons. Most recent historians, however, accept the story of this personage as true in its main facts; some believe him to have been merely the ancestor of the royal house which later on founded the united kingdom of the Medes. Its site was happily chosen, in a rich and fertile valley, close to where the roads emerge which cross the Zagros chain of mountains and connect Iran with the valleys of the Tigris and Euphrates, almost on the border of the salt desert which forms and renders sterile the central regions of the plateau. Mount Elvend shelters it, and feeds with its snows the streams that irrigate it, whose waters transform the whole country round into one vast orchard. The modern town has, as it were, swallowed up all traces of its predecessor; a stone lion, overthrown and mutilated, marks the site of the royal palace.