Xénophon & Carl Witt 
The retreat of the ten thousand [EPUB ebook] 

From time to time, in the course of the world’s history, the title of Great has been given to some monarch who has distinguished himself, either by the splendour of his victories, or by the value of his services to his fellowmen. We speak, for example, of Alexander the Great, and amongst English kings, of Alfred the Great.
There was however one empire, that of Persia, in which the title of Great carried with it no distinction, for in this country every king was called the Great King, not because it was supposed that his nature was more noble or his actions more splendid than those of other men, but because he was lord of a vast empire, greater than had ever yet been seen upon the face of the earth.