SOURCE: AP (3-2-13)
SOURCE: AP (2-28-13)
SOURCE: NPR (2-26-13)
SOURCE: CNN.com (2-11-13)
SOURCE: Discovery News (2-13-13)
SOURCE: ABC News (2-11-13)
SOURCE: WaPo (2-11-13)
Charles Keenan is a PhD student at Northwestern University. His M.A. thesis was entitled "The Right to Reform: Popes, Councils, and Cardinals in the Early Sixteenth Century."
David Austin Walsh is the editor of the History News Network.