The International Exhibition of Arts, Manufactures, and Products of the Soil and Mine, unofficially known as the Centennial Exhibition, was held in Philadelphia in 1876 and was attended by more than nine million people. This website presents 1,500 images, including photographs, lithographs, engravings, maps, scrapbooks, and albums, searchable by keyword or subject, on this event.

"Exhibition Facts" provides statistics, a summary of the fair's significance, photographs of buildings erected by foreign nations, and images of sheet music. A timeline traces the fair's lifespan from the 1871 Act of Congress that created its planning commission to the removal of exhibits in December 1876. A bibliography lists more than 130 related works and 17 websites. "Tours" features an interactive map of the fairgrounds. "Centennial Schoolhouse" offers activities, including excerpts from a 17-year-old boy's diary. This website provides revealing images of the event that introduced America "as a new industrial world power."

Providing access to social science data for member colleges and universities, this website presents data that covers a range of sociological and political areas. Issues include census enumerations; urban and community studies; conflict, violence, and wars; economic behavior; legal systems; legislative bodies; mass political behavior and attitudes; and organizational behavior.

While much of the site emphasizes the late 20th century, data sets such as "Historical and Contemporary Electoral Processes" and "1790–1960 Censuses" will be useful for historical research. Searching is available according to a controlled vocabulary of names, subjects, and geographical terms. There are 10 special topic archives with data geared to health, education, aging, criminal justice, and substance abuse and mental health concerns. A "data use tutorial" and links to related sites may be useful.

A selection of more than 16,000 items relating to the performing arts of the late 19th and early 20th centuries is offered on this website. Materials include books, clippings, photographs, drawings, music, manuscripts, moving images, posters and lobby cards, programs, and recorded sound.

Diverse types of material on specific performers—such as Ruth St. Denis, Loie Fuller, and Isadora Duncan—have been selected to allow focused study. More than 2,400 entries are available for photographs (entries often contain multiple images) as well as 21 large format clippings scrapbooks, each with more than 100 pages. The website also presents 16 full-text books and video clips from nine early motion pictures, including a nine-minute clip featuring renowned dancer Anna Pavlowa in Lois Weber's The Dumb Girl of Portici (1914).

This bilingual website (English and French) explores the history of the French presence in North America from the early 16th century to the end of the 19th century through more than 360 manuscripts, books, maps, and other documents. Each thematic presentation—"Exploration and Knowledge," "The Colonies," "Franco-Indian Alliances," "Imperial Struggles," and "The French and North America after the Treaty of Paris"—includes a title exhibit and additional exhibits that highlight particular items in the collection. Materials can also be browsed in the collections section.

A timeline (1515–1804) organizes events in French America by explorations, colonization and development, and conflicts and diplomacy, and places them in the context of events in France. Additionally, there are eight descriptive maps that show various Indian groups in contact with the French and the changes in political boundaries in North America from before 1763 to the era of the Louisiana Purchase.

A collection of business plans and planning information, this archive documents the "Birth of the Dot Com Era." Documents can be browsed (free registration required) by alphabetical listing of companies, document type, market sector, or market audience, or the archive can be searched by company name. An advanced search option is also available.

Currently, there are 2,445 companies in the archive with one or more documents and more than 3,400 archived documents. Each company record includes a brief description of the company, historical information on the company (if available), and related documents. "What We Can Learn" offers three articles on the kinds of observations we can extract from the dot com boom and bust. "Research Corner" offers tips on using the archive in the classroom, announcements, and other project news. Of particular interest are the entries on guidelines and recommendations for studying companies and for using the archive.

Comprehensive and summary data estimates concerning national, international, and regional economic activity are available on this website. Additional data is available according to industry. An overview of the economy provides data on production, purchases by type, prices, personal income, government finances, inventories, and balance of payments.

An easy-to-use keyword index to a set of annual and quarterly national income and product account (NIPA) tables from 1929 to 2006—found in the "National" section under "Personal Income and Outlays"—allows users access to data on specific product sales and ways that consumers have spent money. Forty-nine recent research papers by staff members address issues such as globalization, how the "new economy" is measured, and structural change of the economy over a 28-year period.

Close to 3,000 life histories from 1936–1940, compiled and transcribed by the staff of the Folklore Project, are presented here. They are part of the Federal Writers' Project for the U.S. Works Progress (later Work Projects) Administration (WPA). Documents represent the work of more than 300 writers from 24 states. The histories, usually between 2,000 and 15,000 words in length, take the form of narratives, dialogs, reports, and case histories. Drafts and revisions are included. A typical history may offer information on family life, education, income, occupation, political views, religion, mores, medical needs, diet, and observations on society and culture.

"Voices from the Thirties,” illustrated with photographs of the project's staff at work, interviewees, and their environment, provides contextual information on the creation of the collection. This multifaceted site offers firsthand accounts on subjects such as slavery, 19th-century American folk cultures, and the social history of the Great Depression.

This collection of 150 motion pictures produced between 1894 and 1915 deals with work, school, and leisure activities in the U.S. The films include footage of the U.S. Postal Service in 1903, cattle breeding, firefighters, ice manufacturing, logging, physical education classes, amusement parks, sporting events, and local festivals and parades. Each film is accompanied by a brief summary.

A special presentation furnishes additional information on three categories: America at school, work, and leisure. Essays of roughly 1,000-words provide context and general descriptions of films in each category, display 15 illustrative photographs, and link to related films. A 31-work bibliography provides suggestions for further reading and websites on American labor, education, and leisure.

These printed materials are representative of the public campaigns of the Anti-Saloon League from 1893 to 1933. A six-page history of the League and the Temperance movement and six biographical essays of movement leaders provide context. Facsimiles of 89 fliers produced by the League advocate temperance with arguments that include the effect of alcohol on puppies and German Emperor William II's opinion of drinking. A periodical section reproduces three covers, three sample articles, and one complete 1912 issue of American Patriot, a temperance magazine, and one cover of American Issue.

Other material includes 14 wet and dry maps of the U.S. produced by the League, three temperance anthems, transcriptions of nine anti-alcohol stories, and 12 pro-temperance cartoons. In addition, six entries from the Standard Encyclopedia of the Alcohol Problem, published between 1925 and 1930, offer the Temperance perspective on communion wine, whiskey production, and alcohol use in China.