Neale says of Thomas Aquinas' great hymn the Pange Lingua: "This hymn contests the second place among those of the Western Church, with the 'Vexilla Regis,' the 'Stabat Mater,' the 'Jesu Dulcis Memoria,' the 'Ad Regias Agni Dapes,' the 'Ad Supernam,' and one or two others, leaving the 'Dies Irae' in its unapproachable glory," thus furnishing another supreme testimony to the hymn we have been discussing, which indeed only needs to be read to be appreciated, since it will inevitably tempt to successive readings and these bring with them ever and ever increasing admiration, showing in this more than in any other way that it is a work of sublime genius. With regard to rhyme particularly the triumph of art and the influence of the Latin hymns is undoubted. This latest beauty of poetry reached its perfection of expression in the Latin hymns. It is rather curious to trace its gradual development. It constitutes the only feature of literature which apparently did not come to us from the East. The earlier specimens of poetry of which we know anything among the Oriental nations other than the Hebrews, are beautiful examples of the possibilities of rhythm and the beginnings of meter. As poetry goes westward meter becomes as important as rhythm in poetry and these two qualities differentiated it from prose. Both of these literary modes, however, are eastern in origin. Rhyme comes from the distant West and seems to have originated in the alliteration invented by the Celtic bards. The vowel assonance was after a time completed by the addition of consonantal assonance and then the invention of rhyme was completed. The first fully rhymed hymns seem to have been written by the {200} Irish monks and carried over to the Continent by them on their Christianizing expeditions, after the irruption of the barbarians had obliterated the civilization of Europe. During the Tenth and Eleventh centuries rhyme developed mainly in connection with ecclesiastical poetry. During the Twelfth and Thirteenth centuries it reached an acme of evolution which has never been surpassed during all the succeeding generations.