The Greek forces at Thermopylae, when the Persian army drew near to the entrance of the pass, were seized with fear; and a council was held to consider about a retreat. It was the wish of the Peloponnesians generally that the army should fall back upon the Peloponnese, and there guard the Isthmus. But Leonidas, who saw with what indignation the Phocians and Locrians heard of this plan, gave his voice for remaining where they were, while they sent envoys to the several cities to ask for help, since they were too few to make a stand against an army like that of the Medes.
While this debate was going on, Xerxes sent a mounted spy to observe the Greeks, and note how many they were, and see what they were doing. He had heard, before he came out of Thessaly, that a few men were assembled at this place, and that at their head were certain Lacedaemonians, under Leonidas, a descendant of Hercules.
The horseman rode up to the camp, and looked about him, but did not see the whole army; for such as were on the further side of the wall (which had been rebuilt and was now carefully guarded) it was not possible for him to behold; but he observed those on the outside, who were encamped in front of the rampart. It chanced that at this time the Lacedaemonians held the outer guard, and were seen by the spy, some of them engaged in gymnastic exercises, others combing their long hair. At this the spy greatly marvelled, but he counted their number, and when he had taken accurate note of everything, he rode back quietly; for no one pursued after him, nor paid any heed to his visit. So he returned, and told Xerxes all that he had seen.
Upon this, Xerxes, who had no means of surmising the truth-namely, that the Spartans were preparing to do or die manfully- but thought it laughable that they should be engaged in such employments, sent and called to his presence Demaratus the son of Ariston, who still remained with the army. When he appeared, Xerxes told him all that he had heard, and questioned him concerning the news, since he was anxious to understand the meaning of such behaviour on the part of the Spartans. Then Demaratus said-"I spake to thee, O king! concerning these men long since, when we had but just begun our march upon Greece; thou, however, didst only laugh at my words, when I told thee of all this, which I saw would come to pass. Earnestly do I struggle at all times to speak truth to thee, sire; and now listen to it once more. These men have come to dispute the pass with us; and it is for this that they are now making ready. 'Tis their custom, when they are about to hazard their lives, to adorn their heads with care. Be assured, however, that if thou canst subdue the men who are here and the Lacedaemonians who remain in Sparta, there is no other nation in all the world which will venture to lift a hand in their defence. Thou hast now to deal with the first kingdom and town in Greece, and with the bravest men."Then Xerxes, to whom what Demaratus said seemed altogether to surpass belief, asked further "how it was possible for so small an army to contend with his?""O king!" Demaratus answered, "let me be treated as a liar, if matters fall not out as I say."But Xerxes was not persuaded any the more. Four whole days he suffered to go by, expecting that the Greeks would run away. When, however, he found on the fifth that they were not gone, thinking that their firm stand was mere impudence and recklessness, he grew wroth, and sent against them the Medes and Cissians, with orders to take them alive and bring them into his presence. Then the Medes rushed forward and charged the Greeks, but fell in vast numbers: others however took the places of the slain, and would not be beaten off, though they suffered terrible losses. In this way it became clear to all, and especially to the king, that though he had plenty of combatants, he had but very few warriors. The struggle, however, continued during the whole day.
Then the Medes, having met so rough a reception, withdrew from the fight; and their place was taken by the band of Persians under Hydarnes, whom the king called his "Immortals": they, it was thought, would soon finish the business. But when they joined battle with the Greeks, 'twas with no better success than the Median detachment- things went much as before- the two armies fighting in a narrow space, and the barbarians using shorter spears than the Greeks, and having no advantage from their numbers. The Lacedaemonians fought in a way worthy of note, and showed themselves far more skilful in fight than their adversaries, often turning their backs, and making as though they were all flying away, on which the barbarians would rush after them with much noise and shouting, when the Spartans at their approach would wheel round and face their pursuers, in this way destroying vast numbers of the enemy. Some Spartans likewise fell in these encounters, but only a very few. At last the Persians, finding that all their efforts to gain the pass availed nothing, and that, whether they attacked by divisions or in any other way, it was to no purpose, withdrew to their own quarters.
During these assaults, it is said that Xerxes, who was watching the battle, thrice leaped from the throne on which he sate, in terror for his army.
Next day the combat was renewed, but with no better success on the part of the barbarians. The Greeks were so few that the barbarians hoped to find them disabled, by reason of their wounds, from offering any further resistance; and so they once more attacked them. But the Greeks were drawn up in detachments according to their cities, and bore the brunt of the battle in turns- all except the Phocians, who had been stationed on the mountain to guard the pathway.
So, when the Persians found no difference between that day and the preceding, they again retired to their quarters.
