Battles & Wars › Greece, Rome & Han
Greco-Persian Wars
499–449 BC· War· Europe
Well documentedSolid records, physical evidence or scientific consensus.
A series of wars in which the Persian Empire tried, and failed, to conquer mainland Greece.
See it on the Battles & Wars map →What happened
Greek cities in Ionia, on Turkey's west coast, revolted against Persian rule in 499 BC with help from Athens and Eretria. After crushing the revolt, Darius I sent a punitive force that Athens defeated at Marathon in 490 BC. In 480 BC his son Xerxes invaded with a huge army and fleet. Despite defeat at Thermopylae and the burning of Athens, the Greeks won at Salamis (480) and Plataea (479). Athens then led the counterattack.
Why it matters
Greek independence survived, letting Classical Athens flourish. Herodotus' account founded the writing of history and a lasting image of free Greeks against Eastern empire.
How we know
Herodotus' Histories, written within living memory; Aeschylus' play The Persians (472 BC), by a Marathon veteran; the Serpent Column victory monument, now in Istanbul; Persian inscriptions.
Still debated
Xerxes' army size (Herodotus says millions; modern estimates roughly 100,000–300,000) and whether a formal Peace of Callias ended the war in 449 BC are debated.
Inside this (9)
Connections (6)
▸Achaemenid Persian Empire invaded Greece in Greco-Persian WarsWell documented
The connection
Persia's expansion to the Aegean brought the Greek cities of Ionia under its rule. When they revolted with Athenian help, Darius I and then Xerxes launched invasions of mainland Greece, partly to punish Athens and partly to secure the empire's western frontier.
When and how
Ionia, Greece and the Aegean, 499–479 BC; Darius I's expedition in 490 BC and Xerxes I's in 480–479 BC.
How we know
Herodotus' account, Persian royal inscriptions listing Ionians among subject peoples, and Greek battle monuments.
Debates and open questions
Whether Persia aimed at outright conquest of Greece or just a ring of submissive states is debated; we hear little from the Persian side.
▸Battle of Marathon was the first great Greek victory in Greco-Persian WarsWell documented
The connection
Marathon ended the first Persian invasion and showed that Greek hoplites could beat a Persian army. It gave Athens the confidence to resist again. Around 483 BC, Themistocles persuaded Athens to spend a silver windfall on a large fleet, preparing it for the bigger war of 480–479 BC.
When and how
Marathon, September 490 BC, during the expedition led by Darius I's commanders Datis and Artaphernes.
How we know
Herodotus' history, the burial mound on the plain, and Athens' later commemoration of Marathon in paintings and inscriptions.
Debates and open questions
Some historians think Marathon's importance grew in later Athenian memory, and Persia may have seen it as a minor setback.
▸Battle of Plataea ended the invasion phase of Greco-Persian WarsWell documented
The connection
Plataea destroyed the last Persian army in Greece, and the Greek victory at Mycale in Ionia followed. Persia never again invaded mainland Greece. The war shifted to a Greek offensive, led by Athens, to free the Aegean islands and Ionian cities.
When and how
Plataea, Boeotia, and Mycale, western Turkey, August 479 BC; Pausanias of Sparta on land and the Spartan king Leotychidas at Mycale.
How we know
Herodotus ends his history with these events, and the Serpent Column lists the victorious Greek states.
Debates and open questions
Herodotus' claim that Plataea and Mycale were fought on the same day is often doubted as too neat.
▸Greco-Persian Wars built the Athenian empire that triggered Peloponnesian WarMostly agreed
The connection
To keep fighting Persia, Greek cities formed the Delian League under Athens in 478 BC. Athens turned it into an empire, collecting tribute and moving the treasury to Athens. Thucydides wrote that the growth of Athenian power, and the fear it caused in Sparta, made war inevitable.
When and how
The Aegean world, 478–431 BC; Athens and its allies against Sparta and its Peloponnesian League.
How sure are we?
Thucydides' account of the fifty years between the wars, and Athenian tribute lists carved in stone on the Acropolis.
Debates and open questions
How oppressive Athens' rule over its allies really was, and whether ordinary citizens of allied cities resented or welcomed it, are debated.
▸Battle of Thermopylae became the most famous stand of Greco-Persian WarsWell documented
The connection
Though a defeat, Thermopylae became the war's defining story. The image of Leonidas and his 300 Spartans choosing death over retreat was told by Herodotus, honored by monuments, and retold ever since, overshadowing larger battles in popular memory.
When and how
Thermopylae pass, central Greece, August 480 BC; King Leonidas I of Sparta against Xerxes I.
How we know
Herodotus' account, epitaphs at the site traditionally credited to Simonides, and its long reuse from Roman times to modern films such as 300.
Debates and open questions
How much the story was shaped by Spartan propaganda and later myth-making, rather than what happened, is debated.
▸Xerxes I of Persia led the great invasion of Greece in the Greco-Persian WarsWell documented
The connection
Darius I's first expedition failed at Marathon in 490 BC. Xerxes made the second one of the largest operations of the ancient world, combining a huge army, a fleet of several hundred to over 1,000 ships, a bridge of boats across the Hellespont, and supply depots prepared years ahead.
When and how
Greece, 480–479 BC: Thermopylae, Artemisium, the burning of Athens and Salamis, then Plataea and Mycale in 479 BC.
How we know
Herodotus describes the campaign in detail; the Athos canal and Persian destruction debris on the Athenian Acropolis confirm key parts.
Debates and open questions
Persia's goals are debated: full conquest of Greece, or punishing Athens and securing the frontier. Persian sources say little about the war.