Celtic Mythology Guest: Philip Freeman, Professor, Humanities, Pepperdine University, and author, "Celtic Mythology: Tales of Gods, Goddesses, and Heroes" This pantheon of gods could rival any hero in the Marvel universe. You can thank the Romans for the fact that you've never heard of them. King Arthur Guest: Leah Tether, faculty member and Co-Director, The Centre for Medieval Studies, University of Bristol Perhaps no legend in the English language has been as enduring as the story of King Arthur. Thousands of offshoots and iterations of the central Arthurian ideas have led to story after story of chivalry, conquest, love, and magic that could’ve filled the lifetime of a hundred different Arthurs. And here is yet another twist on the enduring legend.