Africa. At the time of our drama their empire extended southward over Egypt to Cyrenaica, while to the north it comprised Maritime Thrace, Pæonea, and apparently Macedonia, as far as the borders of Thessaly, besides nearly all the islands of the Ægean, north of Krete and east of Eubœa. Their ambition expanded with their conquests, till, at length, they aspired to universal dominion. "The conquest of Greece was represented by Xerxes as carrying with it that of all Europe, so that the Persian empire would become coextensive with the Æther of Zeus, and the limits of the Sun's course."
The idea upon which this colossal empire was based was that of the despotic force of personal will, involving obligation of universal personal service, especially in war. During the expedition of Xerxes the tributaries of the Persian king were virtually slaves, working under the lash, and driven on to the charge in battle with the scourge. The profound humiliation of the subject peoples is forcibly depicted by the Chorus, in the ode wherein they lament the overthrow of the Persian power (v. 586).
Meanwhile, in the heart of Hellas, a new phase of political life had been developed; Athens had thrown off the yoke of her tyrants, the Pisistratids, and the world saw, for the first time, a state composed of free and equal citizens. The revolution of Kleisthenes had established the principles of free speech and equal law, while as yet this new-born liberty had not degenerated into licence. Adverting to the Athenian con-
