WORLD HISTORY

Detailed explanation-1: -As you learned earlier, Sparta and Athens worked together to win the Persian Wars. The Spartans fought most of the battles on land, and the Athenians fought at sea. After the war, the powerful Athenian fleet continued to protect Greece from the Per-sian navy.

Detailed explanation-2: -Sparta didn’t join the Delian League because it was led by Athens and Athens and Sparta were traditionally rivals. Although Athens and Sparta set aside their differences during the Persian Wars to defeat their common enemy, when the wars ended, they once again continued their rivalry.

Detailed explanation-3: -The Delian League was founded in 478 BCE following the Persian War to be a military alliance against any enemies that might threaten Ionian Greeks. It was led most notably by Athens, who protected all members unable to protect themselves with its massive and powerful navy.

Detailed explanation-4: -After the Peloponnesian War, the Spartans set up an oligarchy in Athens, which was called the Thirty. It was short-lived, and democracy was restored. And due to an ill-conceived Spartan foreign policy, Athens was able to recover.

Detailed explanation-5: -The reasons for this war are sometimes traced back as far as the democratic reforms of Cleisthenes, which Sparta always opposed. However, the more immediate reason for the war was Athenian control of the Delian League, the vast naval alliance that allowed it to dominate the Mediterranean Sea.