Battle of Salamis
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The Battle of Salamis was a naval battle fought in 480 BC, between an alliance of Greek city-states under Themistocles, and the Achaemenid Empire under King Xerxes. It resulted in a decisive victory for the outnumbered Greeks. Wikipedia
Location: Saronic Gulf
Start date: September 480 BC
End date: September 480 BC
Territorial changes: Persian army forced to withdraw from Attica, including the city of Athens