On Asia Minor's west coast.
Persia had conquered western Anatolia in 546 BC. In the Ionian
Revolt, the Greek cities of Ionia rose up against
king of Persia.
In 495 BC, the Persians defeated the Greeks in the naval
Battle of Lade.
Persia managed to keep the upper hand and the revolt failed.
However, the mainland Greeks, Athens and
Eretria, showed their allegiance to the rebels during this revolt,
which Persia decided was reason enough to start the
And here is a map of Greece 500 BC - 479 BC:
MAP OF GREECE
500 BC - 479 BC