On whatever this account is based, it is not itself an ancient pagan myth, for gods worshipped by men are not defeated by them or by their supposititious ancestors. By the annalists, real races, imaginary races, and divine groups were regarded more or less from one standpoint; all were human and might be made to fight each other. Next came the question—How were the old gods abandoned, and why had they been, or were even now, supposed popularly to live in the síd? It was known that the Christianized tribes had forsaken the gods, though these had come to be regarded by them as a kind of fairy race living out of sight, to whom in time of need and sub rosa they might appeal. Obviously, then, Christianity must have caused their defeat. To this idea we may trace one source of the account just summarized. It is, in effect, what is said in the Colloquy with the Ancients (Acallamh na Senórach), in which, regardless of the annalistic scheme, the gods are powerful long after their supposed defeat. Caoilte, survivor of the Féinn into the days of St. Patrick, says that soon the Tuatha Dé Danann will be reduced in power, for the saint "will relegate them to the foreheads of hills and rocks, unless that now and again thou see some poor one of them appear as transiently he revisits the earth," i. e. the haunts of men.5 Hence, perhaps, the Colloquy elsewhere represents them as possessing not so much land as will support themselves.6 In St. Patrick's Life this victory is dramatically represented. He went to Mag Slecht, where stood an image of Cenn Crúaich ("Head of the Mound "), covered with gold and silver, and twelve others covered with bronze. The chief image bowed downward when he raised his crozier, and the earth swallowed the others, while their indwelling demons, cursed by the saint, fled to the hill.
Why, then, was the defeat ascribed to the Milesians? Of the different hostile Celtic groups dwelling in different parts of Ireland, two at last became pre-eminent shortly before St. Patrick's time, governed by great dynastic families and reigning respectively at Cashel and Tara. It was for their aggran-
