What were the peace terms established in the truce between Sparta and Athens in 421 BCE?

The Peace of Nicias, made in 421 BCE, was intended to end the fighting by restoring conditions largely to how they had been before the war. The agreement called for the return of certain captured territories and prisoners, rather than Sparta taking Athens or Athens giving Sparta additional land. So the best choice is that Athens and Sparta agreed to go back to how they were before the war.

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