Themistocles Leads Athenian Navy

Setting the scene

Themistocles, born around 524 BC to a non-aristocratic family, rose to prominence in Athenian politics in the 490s BC. After the Persian victory at Marathon in 490 BC, he convinced Athenians that Persia would return and that Athens needed a navy, not just an army. In 483 BC, a rich silver vein was discovered at Laurium. Themistocles persuaded the Assembly to spend the windfall on 200 triremes instead of distributing it to citizens—a controversial decision that proved visionary. He also engineered the ostracism of his rival Aristides in 482 BC.

What happened

When Xerxes invaded Greece in 480 BC with a massive army and fleet, Themistocles served as strategos (general) and commanded the Athenian navy at Artemisium and Salamis. After the Persian victory at Thermopylae, he persuaded Athenians to abandon their city and trust in the 'wooden walls' of their ships—an interpretation of the Delphic oracle. At Salamis in September 480 BC, Themistocles lured the Persian fleet into the narrow straits by sending a false message that Greeks were fleeing. The Persians, with 600-800 ships against 370 Greek triremes, entered the confined waters where their numbers became a disadvantage.

Why it still matters

The Greek victory at Salamis was decisive—perhaps 200 Persian ships were sunk, and Xerxes retreated to Asia, leaving an army that was defeated at Plataea in 479 BC. Themistocles' naval strategy saved Greece and established Athens as a sea power, enabling its later empire. However, his arrogance and alleged corruption led to his ostracism around 471 BC. He fled to Persia, where Artaxerxes I made him governor of Magnesia. He died around 459 BC, a hero to Athens despite his exile. Themistocles exemplifies how one individual's foresight can change history.【474327586005515236†L10-L12】

Background

Athens later dominated Aegean seas. Even centuries later, this episode remains a reference point for how empires rise, fracture, and transform.