At its mouth in 405 BC the Spartan fleet under Lysander defeated the Athenians and ended the Peloponnesian War

• A creek emptying into the Hellespont in present-day Turkey
• A river in ancient Thrace (now Turkey)
• In the mouth of this river the Spartan fleet under Lysander destroyed the Athenian fleet in the final battle of the Peloponnesian War (404 BC)

Wikipedia Word definitions in Wikipedia
Aegospotami (Αἰγὸς Ποταμοί) or Aegospotamos (i.e. Goat Streams ) is the ancient Greek name for a small river issuing into the Hellespont (Modern Turkish Çanakkale Boğazı ), northeast of Sestos . At its mouth was the scene of the decisive battle in 405 BC ...