GENERAL KNOWLEDGE

Detailed explanation-1: -When the Persian army landed at Marathon in 490 BC, the Athenians chose Phidippides, their best runner, to send word to other Greeks of the invasion. Setting out from Athens, Phidippides made for Sparta journeying by way of Eleusis, Megara, and Corinth.

Detailed explanation-2: -The Battle on the plain of Marathon in September 490 BCE between Greeks and the invading forces of Persian king Darius I (r. 522-486 BCE) was a victory that would go down in folklore as the moment the Greek city-states showed the world their courage and excellence and won their liberty.