About Marian Library, University of Dayton: The Marian Library was founded in 1943 to make the Blessed Virgin Mary better known, loved, and served. The Marian Library’s holdings include circulating books, periodicals, rare books (including manuscripts and incunabula), artwork and archival materials. The collections document the history, spirituality and ecclesial foundations of Marian studies. The collection represents numerous languages, time periods, and cultural traditions.