How did the delian league become the athenian empire? (ancient greece. i would be for literally any response. ^^)

After the Persian Wars, the Greeks were worried about the Persians coming back to ate like Greece and destroy more city-states so all of Greece (excluding Sparta) formed the Delian League. Athens slowly dissolves this league by using its persuasive voice, "maybe we should move our treasury to Athens because we'll be handling the money" and since Athens was smart, many Greek city-state followed blindly, " ok, oops we just handed all of our money and freedom the the Athenians" This almost empire/league freed almost all Greeks from Persian control and a leading politician lead Athens to do become an empire, ask greek city-states for steady payments (taxes) and demanding loyalty (no freedom). This leading politician was Pericles, you need to know about Pericles to explain how the Delian league formed into an empire, Pericles even used the league's treasury to rebuild Atens and guided Athens for 30 years and even through the Peloponnesian war.