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Ionia got conquered by Persia. It was in the area of Greeks colonies

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494 B.C. The Persian emperor Darius I vowed to punish Athens as revenge for helping Ionia

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490 B.C the Persian army landed at Marathon, just over 24 miles eat of Athens

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480 B.C. hundreds of Persian ships and more than 150,000 soldiers went on the attack. Athens had forged strong alliances or partnerships with other Greek city-states, including Sparta.

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479 B.C., a large and united Greek army 

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479 B.C., a large and united Greek army 

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479 B.C. a large and united Greek army defeated the Persians at the battle of Plataea. after this, the Persians left Greece and never invaded again.

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Athens and Sparta emerged triumphant as the most powerful city-states in Greece