During the invasion of Xerxes, all the Grecian cities in his passage were subdued or felt the disastrous effects of his vengeance. The Athenians, too proud to submit, and too weak to defend themselves alone by land, sent to consult the oracle at Delphi. The god replied: “_It is only within walls of wood the city will find safety_.” Themistocles persuaded the people that Apollo ordered them to instantly quit their city, and embark on board a good fleet, after having provided places of security for their wives and children. In consequence of this advice, they embarked, after having sent their aged, their women, and their children, to Trozene, in the Peloponnesus. We cannot imagine a more affecting spectacle than the departure of this fleet; the unfortunate inhabitants kept their eyes, bathed in tears, fixed upon their abandoned homes till distance or darkness rendered them invisible. The very animals shared the common grief, running along the shore, and seeming to call back their masters by their cries. It is said that a dog belonging to Xantippus, the father of Pericles, threw himself into the sea, and swam by the side of his vessel till it reached Salamis, where it sunk exhausted upon the beach and died. This imaginative people erected a monument to this faithful dog, called “The Grave of the Dog.” In the mean time, the Persian army entered Athens, forced the citadel, defended to the last by a small number of self-devoted men, and reduced the superb city to ashes. SECOND SIEGE, A.C. 404. After the battle of Platææ, the citizens of Athens returned to their country, and built a superb city upon the ruins of the ancient one. By recovering its splendour, it attracted the jealousy of its rival Sparta, the capital of Lacedæmonia. This was the commencement of the famous Peloponnesian war. In the twenty-ninth year of this war, Lysander, having conquered the Athenians at Ægospotamos, marched directly against Athens. Though without vessels, without provisions, without hope, the Athenians defended themselves for eight months, and then surrendered, conquered alone by famine. The Spartans disgraced themselves by destroying the walls of the first city of Greece to the sound of musical instruments; and they established a government of thirty tyrants, in order to subdue the spirit of the unfortunate inhabitants. This servitude did not last long; Athens was delivered from the yoke of the Thirty, by means of five hundred soldiers, raised by a simple Syracusan orator, named Lysias, out of veneration for the common country of eloquence. The expulsion of the thirty tyrants took place the same year that the kings were expelled from Rome.