Jaroslav Pelikan (1923–2006) (PhD, University of Chicago) was a historian of Christianity, theology, and medieval intellectualism. He received his PhD from the University of Chicago. Throughout his life he held numerous intellectual leadership positions. He was dean of Yale Graduate School from 1973 to 1978, president of the American Academy of Arts and Sciences, editor of the religious section of Encyclopedia Britannica, a member of the President’s Committee on the Arts and Humanities, and founder of the Council of Scholars at the Library of Congress. He was Sterling Professor Emeritus of History at Yale University, where he served on the faculty from 1962 to 1996. Pelikan wrote over 30 books, including Mary Through the Centuries, Jesus Through the Centuries, Whose Bible Is It?, and The Vindication of Tradition.