What were the con consepuences of the Persian wars?

Answer 1

Athens became dominant, establishing and empire out of the Greek cities it led in the later stages of the war.

Athens used this power to interfere in the other Greek cities, bringing it into war with the Peloponnesian League in a disastrous 27-year war, which it lost and was stripped of its empire, becoming a second rate power.

Sparta was dominant in the Greek world, until toppled by Thebes.

The continuous infighting left the way clear for Macedonia to take control, and take over the Persian Empire under Alexander the Great.