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 the Equal Rights Amendment. 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.

For many Americans, their fondest memories revolve around a library card. From searching through the stacks, to getting a return date stamped on the back of a new favorite book, libraries are a quintessential part of how Americans learn and engage with their local communities. Since this country’s founding, public libraries have received broad and consistent popular support for their democratic missions and services. The ability to access free information has become a core ideal of what it means to be an American citizen, despite periods of historic inequality. Libraries help make this access possible by placing public benefit at the center of their work and continually adapting their strategies to meet changing public needs over time. This exhibition tells the story of the American public library system, its community impact, and the librarians who made it possible—from the founding of the first US libraries through the first one hundred years of service. This exhibition was created as part of the DPLA’s Public Library Partnerships Project in collaboration with partners and participants from Digital Commonwealth, Digital Library of Georgia, Minnesota Digital Library, Montana Memory Project, and Mountain West Digital Library.

This collection uses primary sources to explore the Bracero Program. 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 collection uses primary sources to explore the campaign for women's suffrage through the passage of the Nineteenth Amendment. 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.