In 2006, Madison, WI, celebrated the 150th anniversary of its incorporation as a city. To mark the occasion, this website features 6,952 images, several articles and documents, maps and information on Madison's buildings, and links to virtual exhibits, entreating users to investigate Madison's past. This diverse collection of materials highlights both the experiences of the American Indian groups that had lived in the Madison area for many thousands of years, as well as those of the Yankee, English, Irish, German and Scandinavian settlers who began to arrive in 1837.

Visitors can view a map of American Indian village and mound sites, built for burial and ceremonial purposes, which are still visible around the city today. Also available are the recollections of George W. Stoner, one of the first settlers to arrive in Madison, through which one can learn about the construction of the city's first buildings and businesses, its first election, and its first suicide. Moving into the 20th century, visitors can also learn of the Federal Government's attempts to enforce Prohibition in Madison, which one official described as "queen of the bootleggers." This website is useful for those interested not only in Wisconsin history, but also in the history of urbanization in the United States more generally.

Dick Thornburgh served as Governor of Pennsylvania from 1979 to 1987, and Attorney General from 1988 to 1991, under Ronald Reagan and George Bush. He also served as Undersecretary General of the United Nations from 1992 to 1993 after an unsuccessful bid to fill John Heinz's vacated U.S. Senate in 1991. He is currently a practicing lawyer in Washington, DC. This website presents 5,115 documents from his personal papers, including executive orders, news releases, op-eds, reports, speeches, testimony, and transcripts. It also includes 488 photographs, 31 audio clips, and 55 video clips. These materials shed light on many prominent events in late-20th century U.S. political history and international relations. For example, a search for "Three Mile Island," the nuclear power plant near Harrisburg that experienced a partial meltdown in 1979, calls up more than 300 items, including photographs of Thornburgh at the site and op-eds written by Thornburg designed to quell public fear.

This image resource site contains 30,000 digitized images from books and periodicals, as well as original photographs, prints, and postcards, mostly dated before 1923. There are cartoons and illustrations from the well known Harper's Weekly and Century Magazine, as well as images from the Library of Congress Prints and Photograph division. In addition many of the vibrant images of Native Americans were collected from the Department of War Indian Gallery. Covering more than 12,000 subjects, the site features images of Jamestown settlers, Pocahontas and John Smith, American presidents, 19th-century New York architecture, slave life, American and European women's costumes, streetcars and trains, and even insects and snakes.

Bibliographical information accompanies each image, and users may also save images of interest in their own "gallery" for viewing or purchase. Thumbnail sketches enlarge for full-page viewing. Searchable by keyword or by browsing a variety of indexes, the collection is a useful visual resource for teachers and researchers.

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."

More than 30,000 photographs of Colorado towns, landscapes, mining scenes, and American Indian tribes, taken between 1860 and 1920, are featured on this website. Approximately 4,000 images deal with the mining industry, including labor strikes, while 3,500 photographs depict Indian communities from more than 40 tribes west of the Mississippi River.

Special presentations include a gallery of over 40 photographs depicting the dwellings, children, and daily lives of Native American women; more than 30 images of buildings, statues, and parks in Denver built in conformance with the turn-of-the-century "City Beautiful" movement; and 20 World War II-era photographs of the Tenth Mountain Division, ski troops from Colorado who fought in Italy. Each image in these special exhibits is accompanied by a brief description. There are also biographies of three Western photographers.

The papers of telephone inventor Alexander Graham Bell (1847–1922), more than 4,600 items, are presented on this website. Materials include family papers, general correspondence, laboratory notebooks from 1891 to 1893 and 1910, scientific notebooks, blueprints, journals, articles, lectures, and photographs.

Writings address a range of subjects, including the telephone, deaf education, experiments with aeronautics, and other inventions. There are more than 100 letters to and from Helen Keller, family correspondence, and material on life in Washington, DC and Nova Scotia, where Bell had a summer home and conducted experiments. Ten "collection highlights," including notebook pages, document his first success with the telephone, essays on Bell's career and on the telephone, an annotated timeline, a 19-title bibliography, and a list of related sites.

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.

This large, attractive site provides high-quality material on American history for historians and teachers. The collection contains more than 60,000 "rare and important" American historical documents, images, and objects from 1493 to 1998; about 10,000 of these are available online. Authors include George Washington, John Quincy Adams, Harriet Beecher Stowe, Frederick Douglass, and Abraham Lincoln.

Each week an annotated, transcribed document is featured, and an archive contains 80 past featured documents. "Treasures of the Collection" offers 24 highlighted documents and images. Six online exhibits cover topics such as Alexander Hamilton, the Dred Scott decision, Abraham Lincoln, and topics such as freedom and battles. Podcasts with historians address issues such as Presidential history and the Great Depression. Additional resources include links to historical documents, published scholarship, and general history resources on the web.

These facsimile images of measured drawings, photographs, and written documentation cover 35,000 significant historic sites dating from the 17th to the 20th century. The Historic American Buildings Survey (HABS) started in 1933 as a work relief program and became a permanent part of the National Park Service the following year to document "our architectural heritage of buildings," in the words of project founder Charles E. Peterson. The Historic American Engineering Record (HAER) was established in 1969 to similarly survey engineering works and industrial sites.

For each structure, the site provides from one to ten drawings, from one to 30 photographs, and from one to 50 pages of HABS text detailing the structure's history, significance, and current physical condition. The collection displays building types and engineering technologies from a farmhouse to a pickle factory, from churches to the Golden Gate Bridge.