WWE Libraries Inc. (branded as WWE Video Library) is a WWE-owned subsidiary that consists of the largest collection of professional wrestling videos and copyrights in the world. It is comprised not only of past and current works by WWE (formerly the Capitol Wrestling Corporation, World Wide Wrestling Federation, World Wrestling Federation, and World Wrestling Entertainment) but the works of now defunct professional wrestling promotions dating back to the 1940s. As of 2014, the library stands at 150,000 hours of content including weekly television shows, pay-per-views, and recorded house shows. The collection represents a very significant portion of the visual history of modern professional wrestling in the United States and Canada. WWE has made their classic holdings available through numerous home-video releases, WWE Vintage Collection and the WWE Network.