History of the Peloponnesian War

Accordingly, after conference with the Athenian ambassadors, an alliance was agreed upon and oaths were exchanged, upon the terms following:—

1. The Lacedaemonians shall be allies of the Athenians for fifty years.2. Should any enemy invade the territory of Lacedaemon and injure the Lacedaemonians, the Athenians shall help them in such way as they most effectively can, according to their power. But if the invader be gone after plundering the country, that city shall be the enemy of Lacedaemon and Athens, and shall be chastised by both, and one shall not make peace without the other. This to be honestly, loyally, and without fraud.

3. Should any enemy invade the territory of Athens and injure the Athenians, the Lacedaemonians shall help them in such way as they most effectively can, according to their power. But if the invader be gone after plundering the country, that city shall be the enemy of Lacedaemon and Athens, and shall be chastised by both, and one shall not make peace without the other. This to be honestly, loyally, and without fraud.

4. Should the slave population rise, the Athenians shall help the Lacedaemonians with all their might, according to their power.

5. This treaty shall be sworn to by the same persons on either side that swore to the other. It shall be renewed annually by the Lacedaemonians going to Athens for the Dionysia, and the Athenians to Lacedaemon for the Hyacinthia,

and a pillar shall be set up by either party; at Lacedaemon near the statue of Apollo at Amyclae, and at Athens on the Acropolis near the statue of Athena.