The Hill Museum & Manuscript Library has the dual purpose of preserving handwritten manuscript treasures on film and making them available to scholars. Since the library was established as a sponsored program of the university in 1964, it has systematically microfilmed complete collections of manuscripts in libraries and archives throughout Europe and Africa. The manuscripts, now preserved on microfilm in the Bush Center, were largely written by hand and have been preserved by Benedictine and other libraries. Through the production of catalogues and other tools of access, HMML has become a national resource for the documentation and study of the historical periods represented. This "collection of collections" at Saint John's contains more than 20,000,000 pages of microfilmed documentation.