Battle of Marathon
In 490 BC Athenian hoplites defeated a Persian army that had landed on the plain of Marathon in Attica.

The Persian force sent by Darius I crossed the Aegean, burned Eretria and landed on the plain of Marathon north-east of Athens. While Spartan help was delayed by a religious festival, the Athenians, aided only by Plataea, attacked first on the plan of Miltiades.
The Athenian phalanx strengthened its wings, enveloped the Persians and won a great victory; Herodotus wrote that about 6,400 Persians and 192 Athenians died. The story of a messenger who ran to Athens with the news and then died is a later legend, which gave its name to the marathon race of the modern Olympics. The victory gave the Athenians confidence that Persia could be beaten.