The Ionian League, also called the Panionic League, was a confederation formed at the end of the Meliac War in the mid-7th century BC comprising twelve Ionian cities. These were listed by Herodotus as:
Miletus, Myus, and Priene, all in Caria and speaking the same dialect;
After 650 BC, Smyrna, an originally Aeolic city, was invited to diminish Aeolis and increase Ionia by joining the league, which it did. One of our earliest historical sources, the Histories of Herodotus, and early inscriptions refer to the legally constituted body customarily translated by "league" as "the Ionians" in the special sense of the cities incorporated by it. One therefore reads of the cities, council or decisions "of the Ionians." Writers and documents of the Hellenistic Period explicitly use the term koinon or synodos of the Ionians, and by anachronism apply it to the early league when they mention it. The league was dissolved a few times and reconstituted a few times and in between its actual power varied. Under the Roman empire it was allowed to issue its own coinage under the name koinon Iōnōn on one side with the face of the emperor on the other.
Foundation
The Meliac War was a final settlement between the ancient state of Caria and the Ionians who had been settlers on its land at the mouth of the Maeander for some centuries. Their last stronghold was the fortified settlement of Melia at the smaller peak of Dilek Daglari on the north slopes of Mycale, where the seat of their worship of Poseidon Heliconius was located. The fort was constructed in the early 7th century BC. Carians and Ionians had been intermarrying for generations but a Carian state persisted until a coalition of Ionian cities defeated it and divided its lands among them. In view of the rising Persian threat they decided to continue the coalition as the Ionian League, building a new religious and political center at Melia. Delegates of the league gathered to celebrate the Panionia, a religious festival and games dedicated to Poseidon Heliconius at the sanctuary of Poseidon called the Panionium. The Ionians had decided to continue the worship of Poseidon. Eventually, a new temple to the god was erected about 540 BC. Its ruins and the location of Melia were part of the Lohmann et al. discoveries of 2004. Prior to then, other theories of the location had been prevalent.
Role in Ionian history
The Ionian League was the first alliance of city-states in the region.
