And when they straightway proposed the question whom they should set up to be king, Deioces was much put forward and commended by every one, until at last they agreed that he should be their king. And he bade them build for him a palace worthy of the royal dignity and strengthen him with a guard of spearmen. And the Medes did so: for they built him a large and strong palace in that part of the land which he told them, and they allowed him to select spearmen from all the Medes. And when he had obtained the rule over them, he compelled the Medes to make one fortified city and pay chief attention to this, having less regard to the other cities. And as the Medes obeyed him in this also, he built large and strong walls, those which are now called Ecbatana, standing in circles one within the other. And this wall is so contrived that one circle is higher than the next by the height of the battlements alone. And to some extent, I suppose, the nature of the ground, seeing that it is on a hill, assists towards this end; but much more was it produced by art, since the circles are in all seven in number. 117