Now, though Xerxes had already passed through Doris and invaded the country of Phocis, and was burning and destroying the cities of the Phocians, yet the Greeks sent them no relief; and, though the Athenians earnestly desired them to meet the Persians in Boeotia, before they could come into Attica, as they themselves had come forward by sea at Artemisium, they gave no ear to their request, being wholly intent upon Peloponnesus, and resolved to gather all their forces together within the Isthmus, and to build a wall from sea to sea in that narrow neck of land; so that the Athenians were enraged to see themselves betrayed, and at the same time afflicted and dejected at their own destitution. For to fight alone against such a numerous army was to no purpose, and the only expedient now left them was to leave their city and cling to their ships; which the people were very unwilling to submit to, imagining that it would signify little now to gain a victory, and not understanding how there could be deliverance any longer after they had once forsaken the temples of their gods and exposed the tombs and monuments of their ancestors to the fury of their enemies. Themistocles, being at a loss, and not able to draw the people over to his opinion by any human reason, set his machines to work, as in a theater, and employed prodigies and oracles. The serpent of Minerva, kept in the inner part of her temple, disappeared; the priests gave it out to the people that the offerings which were set for it were found untouched, and declared, by the suggestion of Themistocles, that the goddess had left the city, and taken her flight before them towards the sea. And he often urged them with the oracle which bade them trust to walls of wood, showing them that walls of wood could signify nothing else but ships; and that the island of Salamis was termed in it, not miserable or unhappy, but had the epithet of divine, for that it should one day be associated with a great good fortune of the Greeks. At length his opinion prevailed, and he obtained a decree that the city should be committed to the protection of Minerva, "queen of Athens;" that they who were of age to bear arms should embark, and that each should see to sending away his children, women, and slaves where he could. This decree being confirmed, most of the Athenians removed their parents, wives, and children to Troezen, where they were received with eager good-will by the Troezenians, who passed a vote that they should be maintained at the public charge, by a daily payment of two obols to every one, and leave be given to the children to gather fruit where they pleased, and schoolmasters paid to instruct them. This vote was proposed by Nicagoras.