Persian War Ancient Greece : Facts, History, Timeline and Information
The Assyrians came into power in 539 BCE, replacing the Babylonians. Greeks colonizing Persian city states revolted against Persia. Greeks did not like the Persians occupying Thrace. Athenians assisted the Greeks who revolted however the revolt was Crushed. The Assyrians then began punishing the Athenians for helping the colonial Greeks in their revolt. Athenians, with the help of Sparta, defeated the Persians in 450 BCE.
After defeating the Persians, Athenians along with alliances defeated Persian occupation of Asia Minor thus successfully freeing Greek colonial city states there.