True it was that ten years back the former Great King had sent his best troops to be signally defeated upon the coast of Attica; but the losses at Marathon had but stimulated the Persian lust of conquest, and the new King Xerxes was gathering together such myriads of men as should crush down the Greeks and overrun their country by mere force of numbers.
The muster place was at Sardis, and there Greek spies had seen the multitudes assembling and the state and magnificence of the king's attendants. Envoys had come from him to demand earth and water from each state in Greece, as emblems that land and sea were his, but each state was resolved to be free, and only Thessaly, that which lay first in his path, consented to yield the token of subjugation. A council was held at the Isthmus of Corinth, and attended by deputies from all the states of Greece to consider of the best means of defense. The ships of the enemy would coast round the shores of the Aegean sea, the land army would cross the Hellespont on a bridge of boats lashed together, and march southwards into Greece. The only hope of averting the danger lay in defending such passages as, from the nature of the ground, were so narrow that only a few persons could fight hand to hand at once, so that courage would be of more avail than numbers.
The first of all these passes was called Tempe, and a body of troops was sent to guard it; but they found that this was useless and impossible, and came back again. The next was at Thermopylae. Look in your map of the Archipelago, or Aegean Sea, as it was then called, for the great island of Negropont, or by its old name, Euboea. It looks like a piece broken off from the coast, and to the north is shaped like the head of a bird, with the beak running into a gulf, that would fit over it, upon the main land, and between the island and the coast is an exceedingly narrow strait. The Persian army would have to march round the edge of the gulf. They could not cut straight across the country, because the ridge of mountains called Ceta rose up and barred their way. Indeed, the woods, rocks, and precipices came down so near the seashore, that in two places there was only room for one single wheel track between the steeps and the impassable morass that formed the border of the gulf on its south side. These two very narrow places were called the gates of the pass, and were about a mile apart. There was a little more width left in the intervening space; but in this there were a number of springs of warm mineral water, salt and sulphurous, which were used for the sick to bathe in, and thus the place was called Thermopylae, or the Hot Gates. A wall had once been built across the western-most of these narrow places, when the Thessalians and Phocians, who lived on either side of it, had been at war with one another; but it had been allowed to go to decay, since the Phocians had found out that there was a very steep narrow mountain path along the bed of a torrent, by which it was possible to cross from one territory to the other without going round this marshy coast road.
This was, therefore, an excellent place to defend. The Greek ships were all drawn up on the farther side of Euboea to prevent the Persian vessels from getting into the strait and landing men beyond the pass, and a division of the army was sent off to guard the Hot Gates. The council at the Isthmus did not know of the mountain pathway, and thought that all would be safe as long as the Persians were kept out of the coast path.
The troops sent for this purpose were from different cities, and amounted to about 4,000, who were to keep the pass against two millions. The leader of them was Leonidas, who had newly become one of the two kings of Sparta, the city that above all in Greece trained its sons to be hardy soldiers, dreading death infinitely less than shame. Leonidas had already made up his mind that the expedition would probably be his death, perhaps because a prophecy had been given at the Temple of Delphi that Sparta should be saved by the death of one of her kings of the race of Hercules. He was allowed by law to take with him 300 men, and these he chose most carefully, not merely for their strength and courage, but selecting those who had sons, so that no family might be altogether destroyed. These Spartans, with their helots or slaves, made up his own share of the numbers, but all the army was under his generalship. It is even said that the 300 celebrated their own funeral rites before they set out, lest they should be deprived of them by the enemy, since, as we have already seen, it was the Greek belief that the spirits of the dead found no rest till their obsequies had been performed. Such preparations did not daunt the spirits of Leonidas and his men, and his wife, Gorgo, who was not a woman to be faint-hearted or hold him back. Long before, when she was a very little girl, a word of hers had saved her father from listening to a traitorous message from the King of Persia; and every Spartan lady was bred up to be able to say to those she best loved that they must come home from battle 'with the shield or on it'—either carrying it victoriously or borne upon it as a corpse.
When Leonidas came to Thermopylae, the Phocians told him of the mountain path through the chestnut woods of Mount Ceta, and begged to have the privilege of guarding it on a spot high up on the mountain side, assuring him that it was very hard to find at the other end, and that there was every probability that the enemy would never discover it. He consented, and encamping around the warm springs, caused the broken wall to be repaired, and made ready to meet the foe.
The Persian army were seen covering the whole country like locusts, and the hearts of some of the southern Greeks in the pass began to sink. Their homes in the Peloponnesus were comparatively secure—had they not better fall back and reserve themselves to defend the Isthmus of Corinth? But Leonidas, though Sparta was safe below the Isthmus, had no intention of abandoning his northern allies, and kept the other Peloponnesians to their posts, only sending messengers for further help.
Presently a Persian on horseback rode up to reconnoitre the pass. He could not see over the wall, but in front of it, and on the ramparts, he saw the Spartans, some of them engaged in active sports, and others in combing their long hair. He rode back to the king, and told him what he had seen. Now, Xerxes had in his camp an exiled Spartan Prince, named Demaratus, who had become a traitor to his country, and was serving as counsellor to the enemy. Xerxes sent for him, and asked whether his countrymen were mad to be thus employed instead of fleeing away; but Demaratus made answer that a hard fight was no doubt in preparation, and that it was the custom of the Spartans to array their hair with special care when they were about to enter upon any great peril. Xerxes would, however, not believe that so petty a force could intend to resist him, and waited four days, probably expecting his fleet to assist him, but as it did not appear, the attack was made.
The Greeks, stronger men and more heavily armed, were far better able to fight to advantage than the Persians, with their short spears and wicker shields, and beat them off with great ease. It is said that Xerxes three times leapt off his throne in despair at the sight of his troops being driven backwards; and thus for two days it seemed as easy to force a way through the Spartans as through the rocks themselves. Nay, how could slavish troops, dragged from home to spread the victories of an ambitious king, fight like freemen who felt that their strokes were to defend their homes and children!
But on that evening a wretched man, named Ephialtes, crept into the Persian camp, and offered, for a great sum of money, to show the mountain path that would enable the enemy to take the brave defenders in the rear! A Persian general, named Hydarnes, was sent off at nightfall with a detachment to secure this passage, and was guided through the thick forests that clothed the hillside. In the stillness of the air, at daybreak, the Phocian