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Athens' surprise victory at the battle of Marathon astonished Persia. The outnumbered Greeks had defeated the Persian army. This had opened a divide that shaped the ancient and modern worlds. This had began the Golden Age of Athens and the Greco-Persian Wars. -
In the biggest naval conflict ever to take place in history, the Greeks destroyed the Persian fleet off the island of Salamis. The Persian king, Xerxes, fled to Asia with his remaining ships and the majority of his ground forces after the Greek triumph, which shifted the tide of the conflict. -
Three days of resistance by 300 Spartans under King Leonidas and other Greek allies against the Persian army under Xerxes I were unsuccessful. This battle had happened because of the reason that King Xerxes of Persia wanted to gain more territory. It had signaled the start of a string of significant Greek victories over the Persians. -
The Delian League was an alliance of Greek city-states formed as a deterrent to Persian invasion, since each member agreed to defend one another in the event of an attack.