Learn about the naval warfare between Britain and Germany that led to the sinking of the Lusitania. Created by Sal Khan.

In 1803, the United States purchased the Louisiana Territory—800,000 square miles of land in the interior of North America. Most of this land had not been previously explored or documented. President Thomas Jefferson chose Meriwether Lewis and William Clark to lead an ambitious military expedition, seeking a northwestern passage to the Pacific Ocean and to document their journey in this unknown territory. Starting in what is now Missouri, the expedition followed the Missouri River and passed through present-day Montana on its way to the Pacific. The explorers commented on the beauty of the landscape and the abundance of animals, and their descriptions attracted fur traders and others ready to take advantage of the region's abundant natural resources. The discovery of gold in 1862 brought in the first rush of people and subsequent mining forever changed the region. The mining industry demanded support in the form of towns, railroads, logging, ranching, and farming. These industries shaped Montana and the people who settled there. This exhibition explores the industries that brought settlers to Montana from the early days to the 1920s. Each industry had its own “boom and bust” cycle that impacted the residents and the future of the state. This exhibition was created as part of the DPLA’s Public Library Partnerships Project by collaborators from Montana Memory Project: Jennifer Birnel, Della Yeager, Cody Allen, Dale Alger, Caroline Campbell, Carly Delsigne, Pam Henley, Stef Johnson, Lisa Mecklenberg-Jackson, Laura Tretter, and Franky Abbott. Exhibition organizers: Jennifer Birnel and Franky Abbott.

This collection uses primary sources to explore twentieth-century mining in the Mojave Desert. Digital Public Library of America Primary Source Sets are designed to help students develop their critical thinking skills and draw diverse material from libraries, archives, and museums across the United States. Each set includes an overview, ten to fifteen primary sources, links to related resources, and a teaching guide. These sets were created and reviewed by the teachers on the DPLA's Education Advisory Committee.

This inquiry examines the 20th century history of migration from Mexico to the United States and recent efforts to limit the movement of people across the southern U.S. border. The inquiry takes its inspiration from a 2018 podcast episode by Malcom Gladwell titled, “General Chapman’s Last Stand.” The podcast is part of Gladwell’s Revisionist History series (http://revisionisthistory.com). In the podcast, Gladwell tells the story of General Leonard F. Chapman Jr., Commandant of the Marine Corps during the Vietnam War, who went on to serve as the Commissioner of the Immigration and Naturalization Service (INS) from 1972 to 1975. Chapman is credited with reforming the INS into a more efficient and effective agency, but Gladwell argues that Chapman’s efforts also led to an unintentional increase in unauthorized immigrants. In 1970, 760,000 Mexican immigrants, or 1.4% of Mexico’s population, lived in the U.S. By 2008, there were 12.7 million Mexican immigrants in the U.S. which amounted to 11% of all people born in Mexico; an increase of almost 800% in less than 30 years. The question of how and why this happened is the central focus of this inquiry.

This collection uses primary sources to explore the Boston Tea Party. Digital Public Library of America Primary Source Sets are designed to help students develop their critical thinking skills and draw diverse material from libraries, archives, and museums across the United States. Each set includes an overview, ten to fifteen primary sources, links to related resources, and a teaching guide. These sets were created and reviewed by the teachers on the DPLA's Education Advisory Committee.

This art history video discussion examines John Singleton Copley's "A Boy with a Flying Squirrel" (Henry Pelham), 1765, 77.15 x 63.82 cm / 30-3/8 x 25-1/8 inches (Museum of Fine Arts, Boston).

The Lawrence Textile Strike was a public protest mainly of immigrant workers from several countries, including Austria, Belgium, Cuba, Canada, France, England, Germany, Greece, Ireland, Italy, Lithuania, Netherlands, Norway, Poland, Portugal, Russia, Scotland, Spain, Syria, and Turkey. According to the 1910 census, 65% of mill workers (many of whom eventually struck) lived in the United States for less than 10 years; 47% for less than five years. Prompted by a wage cut, the walkout spread quickly from mill to mill across the city. Strikers defied the assumptions of conservative trade unions within the American Federation of Labor that immigrant, largely female and ethnically diverse workers could not be organized. The Lawrence strike is referred to as the “Bread and Roses” strike and “The Strike for Three Loaves." The first known source to do so was a 1916 labor anthology, The Cry for Justice: An Anthology of the Literature of Social Protest by Upton Sinclair. Prior to that, the slogan, used as the title of a 1911 poem by James Oppenheim, had been attributed to ‘Chicago Women Trade Unionists.’ It has also been attributed to socialist union organizer Rose Schneiderman. James Oppenheim claimed his seeing women strikers in Lawrence carrying a banner proclaiming “We Want Bread and Roses Too” inspired the poem, “Bread and Roses.” The poem, however, was written and published in 1911 prior to the strike. Later the poem was set to music by Caroline Kohlsaat and then by Mimi Farina. The song and slogan are now important parts of the labor movement and women’s movement worldwide. This exhibition was made in collaboration with the Lawrence History Center and the University of Massachusetts Lowell History Department.

Students research the effects of the Vietnam war on a specific group of people who were involved. They then create Internet scavenger hunts to share with the class.

As an assistant attorney general in the Civil Rights Division of the Department of Justice, Burke Marshall played a key role in the federal government's efforts to desegregate the South. Representing the presidential administrations of John F. Kennedy and Lyndon B. Johnson, Marshall mediated conflicts between civil rights protesters and southern white officials. In this interview, Marshall recalls the 1961 Freedom Rides and the 1962 desegregation of the University of Mississippi.

This collection uses primary sources to explore school desegregation in Boston. Digital Public Library of America Primary Source Sets are designed to help students develop their critical thinking skills and draw diverse material from libraries, archives, and museums across the United States. Each set includes an overview, ten to fifteen primary sources, links to related resources, and a teaching guide. These sets were created and reviewed by the teachers on the DPLA's Education Advisory Committee.

Several professors, government officials and political party members spoke in a forum on political and social issues affecting U.S. territories, which focused mainly on the relationship between the U.S. federal government and the governments of the territories. Following the speakers' prepared remarks, the panelists responded to questions from members of the audience.

Capitol stories: taking you inside the capitol! Choose by historical era, themes, or specific stories.

This 3-room video tour of the U.S. Capitol, featuring the Crypt, Rotunda, and National Statuary Hall.

This 3-room video tour of the U.S. Capitol, featuring the Crypt, Rotunda, and National Statuary Hall, focuses on information relevant to students taking middle school level U.S. history and civics courses.

This art history video discussion examines Mary Cassatt's "Breakfast In Bed," 1897 (Huntington Library).

This art history video discussion examines Mary Cassatt's "In the Loge," 1878, oil on canvas, 81.28 x 66.04 cm / 32 x 26 inches (Museum of Fine Arts, Boston).

This art history video discussion examines Mary Cassatt's "Woman with a Pearl Necklace in a Loge," 1879, oil on canvas, 32 x 23-1/2 inches or 81.3 x 59.7 cm (Philadelphia Museum of Art).

How did events in the years after 1980 affect national identity in the United States? In this video, Kim discusses changes in US foreign policy, economics, and politics, attempting to place the developments of this era into a broader historical context.

This site includes documents from the Continental Congress, the Constitutional Convention and ratification debates, and the first two federal congresses. These documents record American history in the words of those who built our government.

In this activity students will analyze documents that span the course of American history to see examples of "checks and balances" between the legislative, executive, and judicial branches in action. Students will then match the documents they have examined with an appropriate description of the branches of government involved in the action.