The Battle of Marathon took place in 490 BCE during the first Persian invasion of Greece. It was fought between the citizens of Athens, aided by Plataea, against a Persian force commanded by Datis and Artaphernes. The battle was the culmination of the first attempt by Persia under King Darius I to subjugate Greece. The Greek army inflicted a crushing defeat on the more numerous Persians, marking a turning point in the Greco-Persian Wars.
The first Persian invasion was a response to Athenian involvement in the Ionian Revolt, when the city-states of Athens and Eretria each sent a force to support the cities of Ionia in their attempt to overthrow Persian rule. The Athenians and Eretrians had succeeded in capturing and burning Sardis, but they were then forced to retreat with heavy losses. In response to this raid, Darius swore to burn down the two cities that had aided the failed revolt. According to Herodotus, Darius had his bow brought to him and then shot an arrow "upwards towards heaven", saying as he did so: "Zeus, that it may be granted me to take vengeance upon the Athenians!" Herodotus further writes that Darius charged one of his servants to say "Master, remember the Athenians" three times before dinner each day.
At the time of the battle, Sparta and Athens were the two largest city-states in Greece. Once the Ionian revolt was finally crushed by the Persian victory at the Battle of Lade in 494 BC, Darius began making plans to subjugate Greece. In 490 BC, he sent a naval task force under Datis and Artaphernes across the Aegean Sea, to subjugate the Cyclades islands and then to make punitive attacks on Athens and Eretria. Reaching the island of Euboea in mid-summer after a successful campaign in the Aegean, the Persians proceeded to besiege and capture Eretria. The Persian force then sailed for Attica, landing in the bay near the town of Marathon. The Athenians, joined by a small force from Plataea, marched to Marathon, and succeeded in blocking the two exits from the plain of Marathon. The Athenians also sent a message to the Spartans asking for support. When the messenger arrived in Sparta, the Spartans were already involved in a religious festival and gave this as a reason for not coming to help the Athenians.
The Athenians and their allies chose a location for the battle, with marshes and mountainous terrain, that prevented the Persian cavalry from joining the Persian infantry. Miltiades, the Athenian general, ordered a general attack against the Persian forces, composed primarily of missile troops. He reinforced his flanks, luring the Persians' best fighters into his center. The inward wheeling flanks enveloped the Persians, routing them. The Persian army broke in panic towards their ships, and large numbers were slaughtered. The defeat at Marathon marked the end of the first Persian invasion of Greece, and the Persian force retreated to Asia. Darius then began raising a huge new army with which he meant to completely subjugate Greece; however, in 486 BC, his Egyptian subjects revolted, indefinitely postponing any Greek expedition. After Darius died, his son Xerxes I restarted the preparations for a second invasion of Greece, which finally began in 480 BC.
The Battle of Marathon was a watershed in the Greco-Persian wars, showing the Greeks that the Persians could be beaten; the eventual Greek triumph in these wars can be seen to have begun at Marathon. The battle also showed the Greeks that they were able to win battles without the Spartans, as Sparta was seen as the major military force in Greece. This victory was overwhelmingly won by the Athenians, and Marathon raised Greek esteem of them. The following two hundred years saw the rise of the Classical Greek civilization, which has been enduringly influential in Western society, and so the Battle of Marathon is often seen as a pivotal moment in Mediterranean and European history, and is often celebrated today.
Background
The first Persian invasion of Greece had its immediate roots in the Ionian Revolt, the earliest phase of the Greco-Persian Wars. However, it was also the result of the longer-term interaction between the Greeks and Persians. In 500 BC the Persian Empire was still relatively young and highly expansionistic, but prone to revolts amongst its subject peoples. Moreover, the Persian King Darius was a usurper, and had spent considerable time extinguishing revolts against his rule. Even before the Ionian Revolt, Darius had begun to expand the empire into Europe, subjugating Thrace, and forcing Macedon to become a vassal of Persia. Attempts at further expansion into the politically fractious world of ancient Greece may have been inevitable. However, the Ionian Revolt had directly threatened the integrity of the Persian empire, and the states of mainland Greece remained a potential menace to its future stability. Darius thus resolved to subjugate and pacify Greece and the Aegean, and to punish those involved in the Ionian Revolt.
The Ionian Revolt had begun with an unsuccessful expedition against Naxos, a joint venture between the Persian satrap Artaphernes and the Milesian tyrant Aristagoras. In the aftermath, Artaphernes decided to remove Aristagoras from power, but before he could do so, Aristagoras abdicated, and declared Miletus a democracy. The other Ionian cities followed suit, ejecting their Persian-appointed tyrants, and declaring themselves democracies. Aristagoras then appealed to the states of mainland Greece for support, but only Athens and Eretria offered to send troops.
The involvement of Athens in the Ionian Revolt arose from a complex set of circumstances, beginning with the establishment of the Athenian Democracy in the late 6th century BC.
In 510 BC, with the aid of Cleomenes I, King of Sparta, the Athenian people had expelled Hippias, the tyrant ruler of Athens. With Hippias's father Peisistratus, the family had ruled for 36 out of the previous 50 years and fully intended to continue Hippias's rule. Hippias fled to Sardis to the court of the Persian satrap, Artaphernes and promised control of Athens to the Persians if they were to help restore him. In the meantime, Cleomenes helped install a pro-Spartan tyranny under Isagoras in Athens, in opposition to Cleisthenes, the leader of the traditionally powerful Alcmaeonidae family, who considered themselves the natural heirs to the rule of Athens. Cleisthenes, however, found himself being politically defeated by a coalition led by Isagoras and decided to change the rules of the game by appealing to the demos (the people), in effect making them a new faction in the political arena. This tactic succeeded, but the Spartan King, Cleomenes I, returned at the request of Isagoras and so Cleisthenes, the Alcmaeonids and other prominent Athenian families were exiled from Athens. When Isagoras attempted to create a narrow oligarchic government, the Athenian people, in a spontaneous and unprecedented move, expelled Cleomenes and Isagoras. Cleisthenes was thus restored to Athens (507 BC), and at breakneck speed began to reform the state with the aim of securing his position. The result was not actually a democracy or a real civic state, but he enabled the development of a fully democratic government, which would emerge in the next generation as the demos realized its power. The new-found freedom and self-governance of the Athenians meant that they were thereafter exceptionally hostile to the return of the tyranny of Hippias, or any form of outside subjugation, by Sparta, Persia, or anyone else.
Cleomenes was not pleased with events, and marched on Athens with the Spartan army. Cleomenes's attempts to restore Isagoras to Athens ended in a debacle, but fearing the worst, the Athenians had by this point already sent an embassy to Artaphernes in Sardis, to request aid from the Persian empire. Artaphernes requested that the Athenians give him an 'earth and water', a traditional token of submission, to which the Athenian ambassadors acquiesced. They were, however, severely censured for this when they returned to Athens. At some later point Cleomenes instigated a plot to restore Hippias to the rule of Athens. This failed and Hippias again fled to Sardis and tried to persuade the Persians to subjugate Athens. The Athenians dispatched ambassadors to Artaphernes to dissuade him from taking action, but Artaphernes merely instructed the Athenians to take Hippias back as tyrant. The Athenians indignantly declined, and instead resolved to open war with Persia. Having thus become the enemy of Persia, Athens was already in a position to support the Ionian cities when they began their revolt. The fact that the Ionian democracies were inspired by the example the Athenians had set no doubt further persuaded the Athenians to support the Ionian Revolt, especially since the cities of Ionia were originally Athenian colonies.
The Athenians and Eretrians sent a task force of 25 triremes to Asia Minor to aid the revolt. Whilst there, the Greek army surprised and outmaneuvered Artaphernes, marching to Sardis and burning the lower city. This was, however, as much as the Greeks achieved, and they were then repelled and pursued back to the coast by Persian horsemen, losing many men in the process. Despite the fact that their actions were ultimately fruitless, the Eretrians and in particular the Athenians had earned Darius's lasting enmity, and he vowed to punish both cities. The Persian naval victory at the Battle of Lade (494 BC) all but ended the Ionian Revolt, and by 493 BC, the last hold-outs were vanquished by the Persian fleet. The revolt was used as an opportunity by Darius to extend the empire's border to the islands of the eastern Aegean and the Propontis, which had not been part of the Persian dominions before. The pacification of Ionia allowed the Persians to begin planning their next moves; to extinguish the threat to the empire from Greece and to punish Athens and Eretria.
In 492 BC, after the Ionian Revolt had finally been crushed, Darius dispatched an expedition to Greece under the command of his son-in-law, Mardonius. Mardonius re-subjugated Thrace and made Macedonia fully subordinate to the Persians; it had been a vassal of the Persians since the late 6th century BC, but retained its general autonomy. Not long after, however, his fleet was wrecked by a violent storm, which brought a premature end to the campaign.
However, in 490 BC, following the successes of the previous campaign, Darius decided to send a maritime expedition led by Artaphernes (son of the satrap to whom Hippias had fled) and Datis, a Median admiral. Mardonius had been injured in the prior campaign and had fallen out of favor. The expedition was intended to bring the Cyclades into the Persian empire, to punish Naxos (which had resisted a Persian assault in 499 BC) and then to head to Greece to force Eretria and Athens to submit to Darius or be destroyed. After island-hopping across the Aegean, including successfully attacking Naxos, the Persian force arrived off Euboea in mid summer. The Persians then proceeded to besiege, capture, and burn Eretria. They then headed south down the coast of Attica, to complete the final objective of the campaign—punish Athens.
Prelude
The Persians sailed down the coast of Attica, and landed at the bay of Marathon, about 27 kilometres (17 mi) northeast of Athens, on the advice of the exiled Athenian tyrant Hippias (who had accompanied the expedition). Under the guidance of Miltiades, the Athenian general with the greatest experience of fighting the Persians, the Athenian army marched quickly to block the two exits from the plain of Marathon, and prevent the Persians moving inland. At the same time, Athens's greatest runner, Pheidippides (or Philippides in some accounts) had been sent to Sparta to request that the Spartan army march to the aid of Athens. Pheidippides arrived during the festival of Carneia, a sacrosanct period of peace, and was informed that the Spartan army could not march to war until the full moon rose; Athens could not expect reinforcement for at least ten days. The Athenians would have to hold out at Marathon for the time being, although they were reinforced by the full muster of 1,000 hoplites from the small city of Plataea, a gesture which did much to steady the nerves of the Athenians and won unending Athenian gratitude to Plataea.
For approximately five days the armies therefore confronted each other across the plain of Marathon in stalemate. The flanks of the Athenian camp were protected by either a grove of trees or an abbatis of stakes (depending on the exact reading). Since every day brought the arrival of the Spartans closer, the delay worked in favor of the Athenians. There were ten Athenian strategoi (generals) at Marathon, elected by each of the ten tribes that the Athenians were divided into; Miltiades was one of these. In addition, in overall charge, was the War-Archon (polemarch), Callimachus, who had been elected by the whole citizen body. Herodotus suggests that command rotated between the strategoi, each taking in turn a day to command the army. He further suggests that each strategos, on his day in command, instead deferred to Miltiades. In Herodotus's account, Miltiades is keen to attack the Persians (despite knowing that the Spartans are coming to aid the Athenians), but strangely, chooses to wait until his actual day of command to attack. This passage is undoubtedly problematic; the Athenians had little to gain by attacking before the Spartans arrived, and there is no real evidence of this rotating generalship. There does, however, seem to have been a delay between the Athenian arrival at Marathon and the battle; Herodotus, who evidently believed that Miltiades was eager to attack, may have made a mistake while seeking to explain this delay.
As is discussed below, the reason for the delay was probably simply that neither the Athenians nor the Persians were willing to risk battle initially. This then raises the question of why the battle occurred when it did. Herodotus explicitly tells us that the Greeks attacked the Persians (and the other sources confirm this), but it is not clear why they did this before the arrival of the Spartans. There are two main theories to explain this.
The first theory is that the Persian cavalry left Marathon for an unspecified reason, and that the Greeks moved to take advantage of this by attacking. This theory is based on the absence of any mention of cavalry in Herodotus' account of the battle, and an entry in the Suda dictionary. The entry χωρίς ἱππέων ("without cavalry") is explained thus:
The cavalry left. When Datis surrendered and was ready for retreat, the Ionians climbed the trees and gave the Athenians the signal that the cavalry had left. And when Miltiades realized that, he attacked and thus won. From there comes the above-mentioned quote, which is used when someone breaks ranks before battle.
There are many variations of this theory, but perhaps the most prevalent is that the cavalry were completing the time-consuming process of re-embarking on the ships, and were to be sent by sea to attack (undefended) Athens in the rear, whilst the rest of the Persians pinned down the Athenian army at Marathon. This theory therefore utilises Herodotus' suggestion that after Marathon, the Persian army began to re-embark, intending to sail around Cape Sounion to attack Athens directly. Thus, this re-embarcation would have occurred before the battle (and indeed have triggered the battle).