The Persian War alarmed the Greeks and they realized that they needed to unite and have strength in numbers

With the leadership of Athens, the Delian League was established to protect themselves from the mighty Persian Empire

Some of the Greek city-states joined Athens and the Delian League was born

With the leadership of Pericles, Athens' built a powerful navy with funds from the Delian League

This new powerful navy dominated the Mediterranean

Athens begins to use the Delian League funds to restore the city-state after the Persian Wars

Pericles uses the Delian League funds to improve their navy and strengthen their defenses

The Delian League's treasury is moved from Delos to Athens and Sparta begins to worry that Athens is getting too powerful and greedy

Sparta was busy putting down slave revolts, but it was still powerful and ready to take action against Athens

Sparta creates its own league to defend themselves against invaders and strengthen its defenses, they call it the Peloponnesian League

Sparta and Athens, and their leagues, beging a mutual resentment

Tensions grow and it becomes clear that war is imminent

Athens is rebuilt to greater glory than before the Persian Wars

Athens was in ruins from the Persian Wars

Athens is rebuilt to a grander level

Pericles rebuilds the city walls and the Acropolis (meaning "high city", in Greek)

Temples and monuments are built

The Parthenon was built to honor the godess, Athena

Athens was transformed into one of the greatest and magnificent cities in the ancient world