WORLD HISTORY

Detailed explanation-1: -The Delian League, founded in 478 BC, was an association of Greek city-states, numbering between 150 and 330, under the leadership of Athens, whose purpose was to continue fighting the Persian Empire after the Greek victory in the Battle of Plataea at the end of the Second Persian invasion of Greece.

Detailed explanation-2: -Aftermath of the Persian Wars The violent actions of Spartan leader Pausanias at the siege of Byzantium, for instance, alienated many of the Greek states from Sparta, and led to a shift in the military command of the Delian League from Sparta to Athens.

Detailed explanation-3: -The Spartans, meanwhile, were part of the Peloponnesian League (550 BC-366 B.C.) of city-states. It was only a matter of time before the two powerful leagues collided. The Great Peloponnesian War, also called the First Peloponnesian War, was the first major scuffle between them.

Detailed explanation-4: -The Delian League was created in a response to eliminate the threat of Persian invasions after the Persian Wars, as well as to defend Greek interests in the Mediterranean Sea. As the Delian League grew in power and influence, Sparta and its allies formed the Peloponnesian League to challenge the Delian League’s power.