The First Peloponnesian War

Athens begins building the Long Walls.

460 BCE

Athens and Argos (Sparta’s enemy) form an alliance.

460 BCE

Athens broke long-standing alliance with Sparta.

460 BCE

Athens drew Megara (a Peloponnesian city-state) into the Delian League (angering Sparta further).

460 BCE

Timespan

Period: 460 BCE to 445 BCE

Athens defeats Aegina (Spartan ally); forces them into Delian League.

457 BCE

The Athenians would then score crushing victories over several Peloponnese city-states and ravaged the Peloponnese peninsula by sea, taking control of several city-states in the process.

457 BCE

Sparta wins the Battle of Oenoe.

457 BCE

Athens is defeated attempting to support the Greek colonists in Egypt who are fighting the Persians.

454 BCE

Athens moves the Delian League treasury from Delos to Athens, with all finances now being controlled by the Athenians (big deal).

454 BCE

Athens and Sparta sign a 5-year peace treaty, whilst the Persians are taken care of.

454 BCE

Athenian power over Delian states is more pronounced:

448 BCE

City-states must swear loyalty.
Athenian garrisons of soldiers stationed in member states.
Compliant or democratic governments installed.
Use of Athenian coinage as common currency.
Use of Athenian law courts to hear all major cases.

Peace of Callias is signed; leads to consolidation of Athens’ empire.

448 BCE

Persians finally expelled forever after defeats at Cyprus & Cilicia.

448 BCE

After the war flared up again, several defeated Peloponnese city-states (Boeotia, Phocis & Locris) revolted and defeating the Athenians to regain their independence.

447 BCE

Megara & Euboea revolted, with Athens losing Megara, but crushing Euboea to maintain control.

447 BCE

End of the war

445 BCE

The first war ends and the thirty year peace (a treaty) is established between Athens and Sparta.

The First Peloponnesian War ended in an arrangement between Sparta and Athens, which was ratified by the Thirty Years' Peace.

445 BCE