The Ionic and Æolic Greeks on the Asiatic coast had been conquered and made tributary by the Lydian king Croesus: "Down to that time (says Herodotus) all Greeks had been free." Their conqueror, Croesus, who ascended the throne in 560 B.C., appeared to be at the summit of human prosperity and power in his unassailable capital, and with his countless treasures at Sardis. His dominions comprised nearly the whole of Asia Minor, as far as the river Halys to the east; on the other side of that river began the Median monarchy under his brother-in-law Astyages, extending eastward to some boundary which we cannot define, but comprising, in a south-eastern direction, Persis proper or Farsistan, and separated from the Kissians and Assyrians on the east by the line of Mount Zagros (the present boundary-line between Persia and Turkey). Babylonia, with its wondrous city, between the Uphrates and the Tigris, was occupied by the Assyrians or Chaldæans, under their king Labynetus: a territory populous and fertile, partly by nature, partly by prodigies of labor, to a degree which makes us mistrust even an honest eye-witness who describes it afterward in its decline—but which was then in its most flourishing condition. The Chaldean dominion under Labynetus reached to the borders of Egypt, including as dependent territories both Judæa and Phenicia. In Egypt reigned the native king Amasis, powerful and affluent, sustained in his throne by a large body of Grecian mercenaries and himself favorably disposed to Grecian commerce and settlement. Both with Labynetus and with Amasis, Croesus was on terms of alliance; and as Astyages was his brother-in-law, the four kings might well be deemed out of the reach of calamity. Yet within the space of thirty years, or a little more, the whole of their territories had become embodied in one vast empire, under the son of an adventurer as yet not known even by name.