The Battle of Lade was a naval battle which occurred during the Ionian Revolt, in 494 BC. It was fought between an alliance of the Ionian cities and the Persian Empire of Darius the Great, and resulted in a decisive victory for the Persians which all but ended the revolt.

Erythrae or Erythrai later Litri, was one of the twelve Ionian cities of Asia Minor, situated 22 km north-east of the port of Cyssus, on a small peninsula stretching into the Bay of Erythrae, at an equal distance from the mountains Mimas and Corycus, and directly opposite the island of Chios. It is recorded that excellent wine was produced in the peninsula. Erythrae was notable for being the seat of the Erythraean Sibyl. The ruins of the city are found north of the town Ildırı in the Çeşme district of İzmir Province, Turkey.