The libraries of the University of Southern California are among the oldest private academic research libraries in California. For more than a century USC has been building collections in support of the university's teaching and research interests. Especially noteworthy collections include American literature, Cinema-Television including the Warner Bros. studio archives, European philosophy, gerontology, German exile literature, international relations, Korean studies, studies of Latin America, natural history, Southern California history, and the University Archives. The Warner Bros. Archives is the largest single studio collection in the world. Donated in 1977 to the University of Southern California'sSchool of Cinematic Arts, by Warner Communications, the WBA houses departmental records that detail Warner Bros. activities from the studio's first major feature, My Four Years in Germany, to its sale to Seven Arts in 1968. Announced in June 2006, the testimonies of 52,000 survivors, rescuers and others involved in the Holocaust will now be housed in the USC College of Letters, Arts & Sciences as a part of the newly formed USC Shoah Foundation Institute for Visual History and Education. In addition to the Shoah Foundation, the USC Libraries highlights include the California Historical Society, Korean American Archives and the Chinese Historical Society of Southern California. The digital archive holds 193,252 records and 223,487 content files of varying formats. In 2010 ONE National Gay & Lesbian Archives, the largest collection of LGBT materials in the world, became a part of USC Libraries. ONE Archives is located near the University Park Campus at 909 West Adams Boulevard. USC's 22 libraries and other archives currently hold over 5.8 million printed volumes, 1.3 million ebooks, 3 million photographs, and subscribe to more than 30,000 current serial titles, nearly 44,000 linear feet of manuscripts and archives, and subscribe to over 120 electronic databases and more than 14,000 journals in print and electronic formats. Annually, reference transactions number close to 50,000 and approximately 1,100 instructional presentations are made to over 26,000 participants. The University of Southern CaliforniaLibrary system is among the top 35 largest university library systems in the United States.