It began at dawn on the third day at the hot gates. A Spartan warrior, perhaps thirty, perhaps fifty, combed his long black hair, his bronze helmet resting in the dust beside him. All around him, 300 other men did the same, stretching, tying their sandals, checking the edges of their short swords. Behind the rebuilt stone wall, the largest army the world had ever seen was assembling to kill them.
In a few hours, nearly every man combing his hair on that small Greek hill would be dead. The king commanding them was Leonidas, roughly 60 years old, not the young warrior king of legend. He had a wife named Gorgo and a young son, and a crown he never expected to wear. He became king of Sparta only because his older half-brother Cleomenes died without a male heir, under circumstances Sparta preferred not to discuss.
Now he was marching toward his grave, deliberately. The official story says the 300 were an elite force. The deeper truth is stranger and more disturbing. Spartan religious law forbade full military campaigns during the Carneia festival, but the king’s personal royal guard could legally march.
So Leonidas chose 300 men with one specific qualification beyond combat skill: each had a living son. He was choosing men whose family lines would continue after their deaths. He was choosing a force designed to be annihilated. He did not march alone.
By early August 480 BC, other Greek contingents had gathered. From the Peloponnese came more warriors, from central Greece came Thespians, Phocians, and Locrians, and from Boeotia came the Thebans. The total Greek force at Thermopylae was about 7,000 hoplites, not 300. Among them were 700 Thespians under a commander named Demophilus, who brought nearly the entire fighting strength of his small city.
They were farmers and craftsmen, not professional soldiers, and they chose to stay. There were also 400 Thebans, whose loyalty was rightly suspected. Herodotus claims they came as hostages to prove Theban allegiance. For four days, Xerxes waited.
Spies returned with strange reports of Spartans exercising naked and combing their hair. Xerxes, disbelieving, summoned an exiled Greek at his court who explained: when Spartans care for their hair, they are preparing to die. On the fifth day, Xerxes ordered the Medes to attack. Behind them, Persian officers held whips, driving their own men forward like cattle.
The Greek phalanx absorbed the attacks. The Medes fell in piles before the narrow wall. Xerxes then sent his Immortals, 10,000 elite professional soldiers whose numbers were always kept at exactly 10,000. They met the same bronze wall.
The Spartans used a feigned retreat, turning suddenly to flee, then wheeling in perfect formation to slaughter the pursuers. By the end of the first day, the pass was strewn with Persian dead, and the Greek losses were negligible. On the second day, a local Greek named Dieneces, told that Persian arrows would darken the sun, replied calmly: “That is better. We will fight in the shade.
” When a Greek from Trachis named Ephialtes entered Xerxes’ camp, he told the Persians about a mountain path called Anopaea that wound behind the Greek position. That night, Hydarnes led a picked force up the path, guided by Ephialtes. The Phocians guarding the route retreated to high ground, thinking the Persians were coming for them. Hydarnes barely paused, fired one volley, and continued.
No one warned Leonidas. By dawn of the third day, Leonidas knew the battle was lost. He called a council of allied commanders. Most of the 7,000 were ordered to withdraw south while the road was still open, to warn Athens and the Peloponnese.
They left, many weeping. But two contingents refused to go: the 400 Thebans, whose presence is disputed as either choice or hostage-taking, and the 700 Thespians. Leonidas made a final tactical decision. He moved his men from behind the wall to more open ground, where they could kill more Persians before being killed themselves.
The Spartans and Thespians advanced into the dust. The fighting was brutal. Throughout the first hour, Leonidas fell, struck by Persian arrows. The Spartans, seeing their king fall, charged across the lines to recover his body.
Herodotus describes the struggle over his corpse as among the most violent moments of the battle. Four separate Persian attacks were repelled until the Spartans carried their king back. Then Hydarnes arrived. The Persian enveloping force appeared behind the Greeks, and the trap closed.
The Greeks retreated step by step to a small hill named Kolonos. At some point, the Thebans threw down their shields and surrendered. Herodotus says the Persians marked them as slaves with hot iron. Of the 400 Thebans who marched to Thermopylae, about 350 likely surrendered alive.
The Spartans and Thespians formed a circle around Leonidas’ body on the hill. With spears shattered and swords broken, they fought with their hands and teeth. Xerxes, having learned his lesson, ordered his archers to surround the hill. As Herodotus wrote, the Greeks defended the hill until their weapons were gone, then fought with their hands and teeth.
They died standing in a dense ring around their king. When the last man fell, for a moment, the largest army in the world stood looking at a hill covered with corpses, unsure what to say. Then it was over. The Persian losses were enormous.
Herodotus claims 20,000, a number most historians dismiss. Modern estimates range from 2,000 to 10,000 Persian dead, a staggering toll that included a high proportion of noble officers. Xerxes had spent his elite forces to capture a 20-meter-wide strip of dirt. What Xerxes did next changed the course of the war.
He ordered Leonidas’ body mutilated, his head cut off and placed on a spear, and the rest of his corpse crucified at the edge of the pass. This was a profound violation of Persian religious and military norms. The fact that Xerxes ordered it reveals that the three days at the hot gates had shattered something inside him. He was not triumphant; he was burning with rage.
It would prove to be the worst political decision of his life. The story of Thermopylae does not end at Thermopylae. It ends at Salamis, then Plataea, and in the Greek response to Xerxes’ desecration. After the pass fell, the Greek fleet, which had been fighting a stalemate at Artemisium, withdrew.
Athens was evacuated. Xerxes marched south, seized Athens, and burned the Acropolis. The temples the Athenians had built to celebrate victory at Marathon went up in smoke visible from the evacuation ships. In the narrow strait at Salamis, the Athenian commander Themistocles lured the Persian fleet into a trap.
Hundreds of Persian ships were destroyed in a single afternoon. Xerxes, watching from a hill, saw the war turn against him. He left Greece shortly after, leaving a commander named Mardonius with the main army. He never returned.
The next summer, in 479 BC, the Spartans came north. This time they did not send 300 men. They sent 5,000 Spartan warriors, the largest Spartan army ever mustered outside the Peloponnese, followed by tens of thousands of Greek hoplites from across the peninsula. At the plains of Plataea, the Greek phalanxes did what they had done for three days at Thermopylae, but with ten times the force.
Mardonius was killed on the battlefield. The Persian army was annihilated. The invasion of Greece ended almost exactly one year after Leonidas’ death. Sparta repaid Xerxes for what he had done at the hot gates, with interest.
Ephialtes never received the reward Xerxes promised. Persian fortunes collapsed before any payment was made. He fled, was hunted across Greece, and eventually was killed in exile over what Herodotus describes as a private quarrel unrelated to his betrayal. No statue, no song, no monument.
Only his name, used for centuries in Greek to mean nightmare, a name no Greek father would ever give his child. The man who destroyed Leonidas was not a Persian. He was not even a soldier. He was a neighbor.
For millennia, the Persian royal inscriptions at Persepolis, Naqsh-e Rostam, and Susa list Xerxes’ conquests and the peoples who served him. They never mention Thermopylae. They never mention Salamis. They never mention Plataea.
Officially, in the Persian record of itself, the war against the Greeks never happened. The desecration of Leonidas never happened. The invasion that bankrupted the imperial treasury and shattered the prestige of the Great King never happened. But there is an even deeper burial.
The Greek story of the 300 heroes buried the 700 Thespians. It buried Demophilus, a name almost no one knows outside academic history. It buried the helots who died beside their masters and were never counted. It buried the Phocians, Locrians, and Arcadians who marched south at Leonidas’ order and lived with that decision for the rest of their lives.
The legend of the 300 required everyone else to disappear. At the modern monument at Thermopylae, there are two statues. One is of Leonidas with the words “Molon Labe,” come and take them. Most tourists photograph it and leave.
The second statue, smaller and set aside, was not erected until 1997, more than 2,400 years after the battle. It commemorates the 700 Thespians. For nearly the entire span of recorded Western history, there were no shrines to their sacrifice. The Spartans succeeded so completely in mythologizing their role that the city which lost its entire fighting force beside Leonidas was erased from public memory for two and a half centuries.
Forty years after the battle, the Spartans returned to Thermopylae and recovered what remained of Leonidas. They carried the bones home, reburied them in Sparta, and held annual games in his honor as long as Sparta remained a city. His widow Gorgo lived long enough to receive them. His son Pleistarchus reached manhood as king under guardianship.
The Spartans built a monument above the grave. Then the poet Simonides composed the inscription that would be carved at Thermopylae itself: “Go, stranger, and tell the Spartans that we lie here, obedient to their laws. ”
That single sentence has outlived the empire of Xerxes. It outlived the Persian language as it was in 480 BC, and every name on both sides of that pass, except those who refused to leave.
A man combing his hair on a Greek hill one August morning 25 centuries ago, dead a few hours later, left behind two words from his king and a sentence from a poet. The deeper revenge was simpler than victory at Plataea. Sparta made sure we would remember.