Kholod, Maxim. 2020. On the Ionian League in the Fourth Century BC. Studia Antiqua et Archaeologica 26 (2), 201-214.
The author argues that the revival of the Ionian League, most likely dissolved by the Persians right after 494, happened ca. 373 BC. The League seems to have been refounded then as a purely religious association. Its life was very long this time: the League most probably did not cease to exist not only during the rest of the 4th century BC but it was the same one which functioned almost interruptedly throughout further several centuries and disappeared only at a moment after the mid-3rd century AD.