George Catlin, a lawyer turned painter, traveled throughout the American West in the early 19th century to chronicle the Native American experience. His paintings of the Plains Indians are the center of this virtual exhibit. From 1830 to 1836, Catlin visited more than 50 tribes from North Dakota to Oklahoma. His original Indian Gallery was designed to document the transformation of Native Americans and "rescue from oblivion" their customs and lifestyle.

Thirty-one of Catlin's more than 400 paintings are presented in this virtual museum, including one of William Clark, the famous explorer of the Lewis and Clark expedition. Designed for middle school and high school teachers the "classroom" section offers lesson plans that incorporate George Catlin's paintings, Native American artifacts, and primary documents to teach students about early American history, geography, and art appreciation. The lesson plans are thematic and feature scholarly commentaries on the life and work of Catlin. A valuable resource for teaching about the Indian Removal of the 1830s, the transformation of the Western frontier, and the encounter of Anglo American and Native American cultures.

These documents, exhibits, photographs, and essays tell the history of 26 prominent 20th-century scientists, physicians, and experts in biomedical research and public health. The site is divided thematically into "Biomedical Research," "Health and Medicine," and "Fostering Science and Health." The collections include published and unpublished items, such as books, journals, pamphlets, diaries, letters, manuscripts, photographs, audiotapes, video clips, and other materials. Each exhibit includes introductory narratives and biographies of each scientist and a selection of noteworthy documents. The collections are particularly strong in cellular biology, genetics, and biochemistry, with attention to health and medical research policy, application of computers in medicine, science education, and the history of modern science.

Time magazine published its first edition on March 23, 1923. This website features all 4,428 Time magazine covers published since that time. Covers can be searched by keyword or browsed by year.

Exploring Time covers from the early years shows that individuals (generally men in political leadership positions) were featured up until the late 1960s. Indeed, House of Representatives Speaker Joseph G. Cannon occupies Time's first cover, China's General Chiang Kai-shek appears several times between the late 1920s and 1940s, African leaders surface at decolonization in the late 1950s, and Ralph Nader can be found trumpeting the "consumer revolt" on a cover from December 1969.

Those interested in U.S. foreign policy (search China, Russia, Vietnam, or Latin America), popular culture and entertainment, the environment, religion, and legal history also will find valuable resources. Within each keyword search, suggestions for related topics are helpful.

More than 1,500 items pertaining to the Civil War are available on this website, such as letters, newspapers, photographs, sketches, etchings, and posters. Manuscript materials include items from the papers of social reformer William Oland Bourne; a newspaper created by Confederate prisoners; three letters by Walt Whitman; and 32 letters by a nurse at a Federal prison camp hospital.

The site contains sketches dealing with the New York City Draft Riot of 1863; drawings of army life by artists working for Frank Leslie's Illustrated Newspaper; and a Confederate prisoner's sketchbook. Additional materials include 731 stereographs and more than 70 albumen photographs; approximately 500 envelopes with decorative materials; 29 caricatures by a German immigrant in Baltimore sympathetic to the Confederacy; and 304 posters, most of which were used for recruiting purposes.

This wealth of materials—more than 26,000 images in 4,100 collections—comes from 330 archives, libraries, and museums. Together, they document Ohio life, culture, and history from prehistoric times to the recent past. Currently the site provides 2,786 visual items; 768 historical objects, artifacts, or buildings; 106 natural history specimens; 809 published works; and 691 collections of unpublished material. Users can browse or search by word, place, and subject. Displayed materials are presented chronologically on scrapbook pages with 10 selections per page. "Learning Resources," with 22 categories, offers essays of up to 2,000 words illustrated with relevant material. Topics include African Americans, agriculture, American Indians, arts and entertainment, business and labor, civil liberties, daily life, education, immigration and ethnic heritage, government, religion, science and technology, sports, and women.

Thirty-five of the most important documents in the early history of the United States are presented here, accompanied by ample contextualization from the Library of Congress's vast collections. In addition to the "founding documents," the collection includes George Washington's Commission as Commander in Chief (1775), the Federalist Papers (1787–1788), the Alien and Sedition Acts (1798), the Louisiana Purchase (1803), the Missouri Compromise (1820), the Indian Removal Act (1830), Dred Scott v. Sandford (1857) case, the Emancipation Proclamation (1863), and the Thirteenth, Fourteenth, and Fifteenth Amendments to the Constitution. Each document is annotated and accompanied by a related primary source image. Links to American Memory collections and Library of Congress Exhibitions containing additional contextual documents and other secondary source interpretations are also provided, as are links to external websites and a selected bibliography.

Thomas Jefferson outlined three motivating factors in his instructions to Lewis and Clark: a search for navigable rivers to span the continent; a quest for Edenic beauty and riches; and the competitive desire to acquire a continental empire. These 180 documents and artifacts interpret 19th-century westward exploration from this perspective. The range of materials is striking. In addition to maps, plans, and charts, the site offers images (sketches, watercolors, etchings, and engravings), texts (letters, diaries, speeches, newspapers, and books), and tools (surveying and medical instruments, cooking utensils, armaments). The exhibit opens with an examination of the "imperial mentality" common to Virginia's aristocratic class in the late 18th century and then focuses on the Lewis and Clark journey. It ends with the subsequent expeditions of Zebulon Pike, Stephen H. Long, Charles Wilkes, John Charles Fremont, and the mid-19th century transcontinental railroad plan that supplanted the search for a water route.

Created by a nonprofit group interested in "open debate on federal, state, and international tax policy," this site furnishes an eclectic range of primary and secondary resources on the history of American taxation. "Tax History Museum" currently offers a 23,000-word narrative in eight chronological segments summarizing tax policy and politics from 1660 to 1900, supplemented with 70 images and links to related documents. The 20th-century portion is in development. "The Price of Civilization" makes available 14 posters and more than 6,500 pages of federal documents—primarily Treasury Department reports—on the development of the current tax system during the Great Depression and World War II. "Presidential Tax Returns" includes returns of recent presidents and Vice President Cheney. "Taxing Federalism" features nine Federalist Papers, and "Image Gallery" offers 15 political cartoons from the turn of the century to 1947, many by Washington Star cartoonist Clifford Berryman. The site also offers a bibliography and four sound clips of federal officials discussing tax policy.

Highlights from the Smithsonian Institution are presented here, with access to a database of close to 140,000 images from Smithsonian archives and museums. The Image Gallery presents a sample of images, browsable by format, such as photographs, slides, drawings, postcards, and stereographs. Images are also organized by repository, including the Freer Gallery, the Archives Center, and the National Anthropological Archive.

"Frequently Used Images" provides a link to the most popular images, sorted by month and year. Within the Archives Center, for example, there are four collections with more than 30,000 images, including the Underwood and Underwood Glass Stereograph Collection, 1895–1921 on topics such as actors, African Americans, disasters, ethnic humor, immigration, Indians, labor, presidents, women, and World War I. The Addison N. Scurlock Collection presents more than 2,000 black-and-white images, primarily of Washington, DC, and from African American life. There are 1,500 advertisements from the Ivory Soap Advertising Collection and close to 200 postcards. All images may be searched via the "Search Images" tab.

On March 25, 1911, a fire broke out at the Triangle Shirtwaist Factory in New York City causing the deaths of 148 garment workers—an event that came to be known as one of the hallmark tragedies of the industrial age. This website tells the story of the fire in six chapters: Introduction; Sweatshops and Strikes; Fire; Mourning and Protest; Relief Work; and Investigation, Trial, and Reform.

The text, targeted to a middle and high school audience, is accompanied by numerous primary sources that could be of use to more advanced researchers. These include close to 70 photographs, 18 newspaper articles, 17 testimonials, three oral histories, excerpts from investigative reports written in the years following the fire, several letters from witnesses, a lecture given by Secretary of Labor Frances Perkins in 1964, and a radio drama reenacting the event. Accompanying these primary sources is a list of victims and witnesses, a selected bibliography of works surrounding the fire, and tips for writing a paper.