What were causes of the Peloponnesian War?

Answer 1

The main cause of the Peloponnesian War was Sparta's fear of Athens' growth.

Sparta feared the growth and the power of Athens.

As Athens gained more control and power in the Delian League, a coalition of Greek states whose purpose was to provide a navy for defense against the Persians, Sparta was concerned its own power would be reduced and Athens would take over.

The rivalry between Sparta and Athens.

C. Sparta's fear and jealousy of the power and wealth of athens.

Answer 2

The Greek city-state Sparta saw that Athens was gaining some power. They told Athens to give up their land or go into war. Athens chose to go into war and lost. Sparta took over but were terrible rulers. That is when Alexander the great (He's not great) came in and tried to fix everything. That didn't go well. Greece was weakened resulting in the end of Ancient Greek times and then going into Romulus and Remus.