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BATTLE // -489 BCE

Battle of Marathon

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Overview

The Battle of Marathon took place in 490 BC during the first Persian invasion of Greece. It was fought between the citizens of Athens, aided by Plataea, and 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.

Overview adapted from Wikipedia, licensed under CC BY-SA 4.0.

Significance

The Battle of Marathon was the culmination of the first Persian attempt, under King Darius I, to subjugate Greece. A combined Athenian and Plataean force faced a numerically superior Persian army commanded by Datis and Artaphernes, with the Persians fielding roughly double the Greek strength. The Greek army inflicted a crushing defeat on the Persian force, recorded Persian casualties standing at around 6,400. The outcome marked a turning point in the Greco-Persian Wars, demonstrating that Greek citizen forces could defeat a major Achaemenid army in open battle and halting the first Persian invasion of Greece.

Forces & casualties

Troop strength

  • Athens10,000–11,000
    medium
  • Achaemenid Empire25,000
    medium

Achaemenid Empire fielded a 2.4 : 1 numerical advantage

Casualties

  • Achaemenid Empire6,400
    medium26% loss rate

Commanders (10)

Last verified July 2026
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