It was founded in 1929 as the
Institute of Mediaeval Studies at
St. Michael's College of the University of Toronto.
Étienne Gilson, then of the
Sorbonne, was instrumental in its foundation, along with
Henry Carr and Edmund J. McCorkell of the
Congregation of St. Basil and St. Michael's College. In 1939 it was granted a
pontifical charter by
Pope Pius XII, by which it was given the power to grant
licenciate and doctorate degrees in
medieval studies. In 1964 the University of Toronto established the
Centre for Medieval Studies as part of the School of Graduate Studies, for students pursuing a
master's degree or
doctorate in
medieval studies. Teaching at these levels gradually passed from the institute to the centre. (The centre officially uses the spelling "medieval" while PIMS uses "mediaeval".) Students of the Centre for Medieval Studies have access to the PIMS building and library. Up until 1958 the institute had its own charter. From 1958 to 2005, PIMS was a division of the University of St. Michael's College. The Pontifical Institute of Mediaeval Studies Act of 2005 gave the institute academic autonomy from the university, with which, however, it remains affiliated. Under the act, PIMS is administered by a board of governors with its academic affairs vested in the Institute Council of the academic staff, consisting of fellows and associate fellows. ==Postdoctoral Program and Licentiate in Mediaeval Studies==