The wealth, prestige, policies, and power of Athens caused resentment among other city-states. A plague that killed many Athenians helped Sparta defeat Athens. The Peloponnesian War weakened all of the Greek city-states for 50 years.
Similarly, why did Athens lose the Peloponnesian War? In 430 BC an outbreak of a plague hit Athens. The plague ravaged the densely packed city, and in the long run, was a significant cause of its final defeat. The plague wiped out over 30,000 citizens, sailors and soldiers, including Pericles and his sons. Roughly one-third to two-thirds of the Athenian population died.
Subsequently, question is, what was the cause of the Peloponnesian War quizlet?
Greece was not big enough for the Delian League and the Peloponnesian League to be in control. Each league was fighting for allegiance with the city-states. However, the whole reason for the Delian League was to keep the Persian out.
What started the war between Athens and Sparta?
The Peloponnesian War (431-404 B.C.) took place between the Athenian empire and Peloponnesian league lead by the Spartans. Athens could never gain its lost prosperity that it was proud of, pre-war. Reasons: The main reason for the launch of the war was the Spartan fear of Athenss growing power and prosperity.