End of the Greek civilization

End of the Greek civilization

The main reason for the Greek civilization to end was war. Greece entered a 27 years-long war against Sparta called the Peloponnesian war. In order to protect themselves the Athenians built a 4 miles long wall around the city borders. But disease spread rapidly around the overpopulated Athens.

Athenian allies send supplies, but Spartans stopped them and after a year of blockage Spartan soldiers left Athens fearing getting the plague. Persia joined Sparta and after the plague killed 2/3 of the Athenian population, Athens had been strongly weakened, so they could not fight back.
Those years of war and fighting had brought both Polis back in time and the Macedonians, living to the north of the Greek peninsula developed strength. King Philip conquered some of the Greek peninsula and finally his son Alexander conquered the rest of it around 3rd century BC.