Although papal infallibility is commonly found in popular conversation, how well the term is understood is another matter.“Christ giving Peter the keys of the kingdom†by Pietro PeruginoAs Danny Garland, Jr., pointed out in his recent article on “The Development of the Dogma of Papal Infallibility,” the term “papal infallibility” has a centuries-old history that stretches from Peter John Olivi, in the thirteenth century, through John Henry Newman, in the nineteenth century, and down to the present. 1In addition to being a well-known term with a lengthy history, “papal infallibility” is also highly symbolic: for Roman Catholics, it has often...