The Synod of Drumceat
The Synod of Drumceat, in 590, laid restrictions on Druids, but the Druids were officially abolished after the decisive Battle of Moyrath, 637. The bilingual inscription of Killeen, Cormac—IV VERE DRVVIDES, or "Four True Druids," was said to refer to Dubhtach Macnlugil as one of the four, he having been baptized by Patrick.
Dr. Richey may be right, when he says in his History of the Irish People:—"Attempts have been made to describe the civilization of the Irish in pre-Christian periods, by the use of the numerous heroic tales and romances which still survive to us; but the Celtic epic is not more historically credible or useful than the Hellenic,—the Tain Bo than the Iliad" It is probable that the readers of the foregoing tales, or those hereafter to be produced, may be of the same opinion. Not even the prophecy of St. Patrick's advent can be exempted, though the Fiacc Hymn runs:—
"For thus had their prophets foretold then the coming
Of a new time of peace would endure after Tara
Lay desert and silent, the Druids of Laery
Had told of his coming, had told of the Kingdom."