By 1986, J. N. L. Myres, who had written in 1936 (with Collingwood) that Arthur was historical, said "It is inconceivable that Gildas... should not have mentioned Arthur's part..." (that is, if he had existed) and complains that "No figure on the borderline of history and mythology has wasted more of the historian’s time." By 1991, the "Biographical Dictionary of Dark Age Britain" stated that "historians are tending to take a minimal view of the historical value of even the earliest evidence for Arthur, but most probably still see him as an historical figure..." while "the chivalric Arthur... was essentially the creation of Geoffrey of Monmouth in the twelfth century".