Theodoric's study of the rainbow was brought to the attention of modern scholars by the Italian physicist Giovanni Battista Venturi in 1814: Giambatista Venturi, Commentarj sopra la storia e le teorie dell' ottica [Commentary on the history and theory of optics], vol. 1, (Bologna, (Italy): Fratelli Masi, e Compagno, 1814), III. Dell' iride, degli aloni e de' paregli [On the rainbow, halos, and parhelia [i.e., sun dogs]] (in Italian and Latin), pp. 149–180.
