"Here you may see the face of majesty, divinely drawn, here the mystic symbols of the Evangelists. . . . You will make out intricacies, so delicate and subtle, so exact and compact, so full of knots and links, with colours so fresh and vivid, that you might say that all this was the work of an angel, and not of a man." -- Giraldus Cambrensis, Topographia Hiberniae, ca. 1185.Gerald of Wales wrote his ecstatic description of what is most probably...