These more than 350 recently declassified documents from archives of former Warsaw Pact countries and the U.S. reveal previously hidden aspects of Cold War military strategy. The project offers documents and accompanying analyses in six categories: Warsaw Pact records; Warsaw Pact war plans; NATO records (U.S. and British); national perspectives (Bulgaria, Romania, Hungary, China, and Poland); crises (Berlin and Libya); and intelligence.

The website also provides 13 oral history interviews with former officials, including two Eisenhower administration officers involved with NATO planning and nuclear weapons policies. Documents reveal a 1964 Warsaw Pact war plan for using nuclear weapons in a preemptive strike against NATO forces and a 1965 Hungarian Army exercise detailing the targeted destruction of Western cities, including Vienna, Munich, Verona, and Vicenza. A 30-page survey article assesses the new history written since the release of recent documents.

In 1939, John Lomax, Curator of the Library of Congress Archive of American Folk Song, and his wife Ruby Terrill Lomax, embarked on a 6,500-mile journey through the South. During their travels, they recorded more than 700 folk tunes that now are available as audio files on this website. Genres include ballads, blues, children's songs, cowboy songs, fiddle tunes, field hollers, lullabies, play-party songs, spirituals, and work songs.

The site also presents field notes containing personal information on some of the more than 300 performers the Lomaxes recorded, notes on geography and culture, and excerpts from correspondence. More than 50 letters to and from the Lomaxes, 380 photographs, a bibliography of 22 works, and a map are also offered. The site is keyword searchable and can be browsed by subject as well as title, song text, and performer.

This exhibit collects a series of chronologies, images, maps, bibliographies, biographies, essays, and other materials for studying the Spanish-American War. An overview essay discusses the historical context, including events leading up to the war and well-known individuals such as Jose Martí and Theodore Roosevelt.

There are four main sections: Cuba, the Philippines, Puerto Rico, and Spain. Each section presents an introductory essay, a chronology, and guides to related resources. An index offers short descriptive entries on 57 people, 13 places in Puerto Rico, Cuba, and the Philippines, and 21 events. Also available are a chronology and a selected bibliography of personal narratives, illustration sources, manuscripts, and maps. Finally, there is a list of additional Library of Congress resources and relevant American Memory presentations.

These 8,000 items document the immigrant experience of Chinese who settled in California during the 19th and early 20th centuries. Materials include photographs, letters, diaries, speeches, business records, legal documents, pamphlets, sheet music, cartoons, and artwork.

Access is provided through nine galleries, each containing an introductory essay and 70 to 575 items. Four galleries present materials on San Francisco's Chinatown, including architectural space, business and politics, community life, and appeal to outsiders. Additional galleries deal with Chinese involvement in U.S. expansion westward; communities outside San Francisco; agricultural, fishing and related industries; the anti-Chinese movement and Chinese exclusion; and sentiments concerning the Chinese. Visitors may search by keyword, name, subject, title, group, and theme. The site will be useful for studying ethnic history, labor history, and the history of the West as well as Chinese-American history.

For those studying the history of the Olympics, sports history, and the history of leisure and recreation, this website provides more than 45,000 documents (in .pdf format) pertaining to official Olympics history as well as other sports. Complete or partial runs of 10 journals have been digitized, including Journal of Sports History (3,030 articles from 1974–2003), Olympic Review (1901–2003), Baseball Magazine (1909–1918), American Golfer (1908–1911), Golf Illustrated and Outdoor Man (1914–1915), and Outing (1883–1899).

The site also furnishes 58 oral histories of Southern California Olympic athletes and 83 official Olympic Reports from 1896 to 2004. The full text of This Great Symbol: Pierre de Coubertin and the Origins of the Modern Olympic Games by John MacAloon and some recent studies of aspects of sports history are also available. Additions to the site are made regularly.

This well-organized website offers more than 900 items related to Hull House—including newspaper, magazine, and journal articles, letters, memoirs, reports, maps, and photographs. Materials are embedded within a clear historical narrative that illuminates the life of Jane Addams in addition to the history and legacy of Chicago's Hull House.

Users can search the site or focus on any of the 100 topics arranged in 12 chapters that begin with settlement life in Chicago in the 1880s and end with the movement after Addams's death. Topics include the reform climate in Chicago; activism within the movement; the immigrant experience of race, citizenship, and community; education within the settlement house; and cultural and leisure activities at Hull House and in Chicago. The site provides a timeline, featuring a pictorial biography of Addams; a geographical section that includes maps of Chicago; and an image section, with 12 photograph sections and essays.

These two collections illuminate life on the Great Plains from 1862 to 1912. The nearly 3,500 glass plate negatives depict everyday life in central Nebraska, with images of businesses, farms, people, churches, and fairs in four counties. Approximately 318 letters describe the sojourn of the Uriah Oblinger family through Indiana, Nebraska, Minnesota, Kansas, and Missouri as they traveled to establish a homestead. Letters discuss such topics as land, work, neighbors, crops, religious meetings, grasshoppers, financial troubles, and Nebraska's Easter Blizzard of 1873.

A 1,000-word essay describes the letter collection and the lives of the principal correspondents. Biographical notes are available for more than 120 of the people who corresponded with the Oblingers or who were mentioned in the letters.

Covering more than 200 jazz bands and musicians active from 1895 to 1929, this website offers biographical information, photographs, and audio and video files. It includes more than 200 sound files of jazz recordings by well-known artists, such as Louis Armstrong, Sidney Bechet, and Django Reinhardt, as well as many by dozens of lesser-known musicians.

The files are annotated with biographical essays of varying length, discographies, and bibliographic listings. Listings are available for 20 short jazz films made in the late 1920s and early 1930s as well as two video files. Twenty essays and articles about jazz before 1930 come from published liner notes, books, journals, or jazz fans.

The cultural impact of L. Frank Baum's The Wonderful Wizard of Oz is the focus of this well-designed exhibit. Three galleries offer images and explanatory text.

"'To Please a Child': L. Frank Baum and the Land of Oz" examines various aspects of the book, including W.W. Denslow's artwork, Baum's original copyright application, and an early review of the book appearing in the October 1900 issue of The Literary Review. "To See the Wizard: Oz on Stage and Film" looks at two of the most famous productions of Baum's book, the 1902–1903 stage play that became one of Broadway's greatest successes and the classic 1939 MGM movie, including color posters and a full-page color advertisement placed in the September 1939 issue of Cosmopolitan "To Own the Wizard: Oz Artifacts" examines Oz-related novelties, including the Wizard of Oz Monopoly game by Hasbro, a Wizard of Oz stamp, and "The Royal Bank of Oz" rebate check from MGM.