Are You Irish Or Normal? Sean O’Grada. O’Grada traces the history of the Irish in his own inimitable fashion, from many centuries B.C. (The First Irishman was a Greek) through the 9th, 10th and 11th centuries (A Man’s Best Enemy is His Neighbour – And Where Was The O’Neill?) into the 15th and 16th centuries (A Good Sharp Axe Makes Divorce Permanent) and beyond.