The Greek cities within the Persian Empire revolted and were put down.
Athens and Eretria from peninsular Greece intervened, embroiling the Greek cities of mainland Greece.
The Persian king became convinced that the only way to ensure peace was to bring all the Greek cities under his control.
It led to the eventual takeover of the Persian Empire by the Macedonian Alexander the Great.
It led the successful resistance to the Persian invasion 480 to 479 BCE.
Athens turned the Delian League which it had led against the Persian Empire into an empire of its own.
Athens turned the Delian League which it had led against the Persian Empire into an empire of its own.
Athens turned the Delian League which it had led against the Persian Empire into an empire of its own.
The Persian Empire versus a coalition of Greek city-states, at first led by Sparta, then by Athens.
It led the anti-Persian alliance of Greek city-states.
The Persian Empire and an alliance of Greek city-states led first by Sparta and then Athens.
Athens, which turned the coalition of city-states it had led against the Persian Empire into an empire of its own.
It put an end to Persian expansion to the west and led to the contest for power in the Greek world between Athens and its empire and the Spartan-led Peloponnesian League.
They were so important because it led to the destruction of the Persian Empire.
There were over 200, led at first by Sparta, then by Athens.