Biographical Portal is a cooperative project of the Bavarian State Library, the Historical Committee at the Bavarian Academy of Sciences and Humanities, the Austrian Academy of Sciences, and the Foundation Historical Dictionary of Switzerland. A joint index makes available more than 100,000 scholarly biographies of persons from all social backgrounds and nearly all periods of German, Austrian, and Swiss history. The following works are available: Allgemeine Deutsche Biographie (ADB); Neue Deutsche Biographie (NDB); Österreichisches Biographisches Lexikon 1815-1950 (ÖBL); Historisches Lexikon der Schweiz (HLS); Rheinland-Pfälzische Personendatenbank (RPPD); Sächsische Biografie (SäBi)