Evocation of Virgil in Tolkien's Art

In his Preface, Robert Morse states that both Vergil and Tolkien present myth as an aspect of an historical continuum. For these authors, myth does not seem to represent a falsehood, but rather it seems to narrate a record of experience from which humanity learns. Thus, myth is...a form of memory. In Evocation of Vergil in Tolkien's Art, Robert Morse asks the question: does this syncretism of myth and history serve a similar purpose in each author?