Battle of Marathon
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. The first Persian invasion was a response to Athenian involvement in the Ionian Revolt, when Athens and Eretria sent a force to support the cities of Ionia in their attempt to overthrow Persian rule.