In this connexion it may be noted that practically all the Milesian pedigrees converge on three ancestors in the 2nd century - Conn Cetchathach king of Tara, Cathair Mor of Leinster, and Ailill Aulom of Munster, - whilst in scarcely any of them are mythological personages absent when we go farther back than A.D.
It seems a fair inference that the makers of these were Greeks, and that they probably represent the early Milesian colony, settled here in the time of Psammetichus I., before the official assignment of the site by Amasis to the Greek colonists of various cities.
Until the end of the 3rd century the Milesian power must have been confined to the valley of the Boyne and the district around Tara.
As Dionysius of Halicarnassus (Judicium de Thucydide, c. 23) distinctly states that the work current in his time under the name of Cadmus was a forgery, it is most probable that the two first are identical with the Phoenician Cadmus, who, as the reputed inventor of letters, was subsequently transformed into the Milesian and the author of an historical work.
The fondly cherished theory which attributes Milesian descent to the bulk of the native population has at length been assailed.
The Irish banshee is held to be the distinction only of families of pure Milesian descent.
Ulster (Uladh) was one of the early provincial kingdoms of Ireland, formed, according to the legendary chronicles, at the Milesian conquest of the island ten centuries before Christ, and given to the descendants of Ir, one of the sons of Mileadh.
Rhys adopts the view that the race of Eber Find was not Milesian but a branch of the Ernai, and this theory has much in its favour.