The database OLC History is a subject-oriented selection of bibliographic data from the Online Contents database which is supplemented weekly by additional data provided by a number of German libraries. The creation and improvement of the Online Contents History database is currently supported by the Deutsche Forschungsgemeinschaft within the framework of the Clio-online network. The development of the database is coordinated by the Staatsbibliothek zu Berlin - Preußischer Kulturbesitz (SBB-PK) in cooperation with the Bayerische Staatsbibliothek (BSB; Bavarian State Library) Munich, the German central subject library for General History; Prehistory and Early History; Ancient history; History of Germany, Austria, Switzerland, France and Italy, East-European History.
The database, which is updated weekly, contains the contents of about 1,100 journals, usually beginning with articles published in 1993.