Answer:
The primary causes were that Sparta feared the growing power and influence of the Athenian Empire. The Peloponnesian war began after the Persian Wars ended in 449 BCE. ... This disagreement led to friction and eventually outright war. Additionally, Athens and its ambitions caused increasing instability in Greece
Slavery would be one of them
Explanation:
bitter dissapointment over failure to win territory
-rising inflations in unemployment
-democraric government seemed hopeless