The photography collection of Leiden University is the oldest public photography collection in The Netherlands. Started in 1953, it has grown into a varied collection of more than 110.000 photographs, negatives, cameras, technological objects and photographic rarities. These date from the days of the invention of photography in the 19th Century until the present day. The collection aims at representing the developments and the manifestations of the medium throughout its history. It is the basis for academic photo-historical education and research, through the program Master of Photographic Studies, the documentation centre, the specialized library, the Fotolexicon and the annual course 'Identifying of Historic Photographic Processes'. For a long time, the photo collection was housed at the Print Room; since 2002 it is part of the Special Collections of the Leiden University Library.