Aeolis, in ancient geography, a district in Asia Minor, originally settled by colonies of Aeolian Greeks. It was properly the coast land of Mysia, extending from Troas to the south bank of the river Hermus. In its broadest signification it included Troas to the shores of the Hellespont. In the southern part were situated the twelve cities which formed the Aeolian league. Of these, Cyme, where the annual Panrcolium was celebrated, and Smyrna, which in later times became a member of the Ionian confederation, were the most celebrated.