This collection uses primary sources to explore the life and political impact of Henry Clay. 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 course will expose students to tools and methods of analysis for use in assessing the challenges and dangers associated with nuclear weapons in international politics. The first two weeks of the course will look at the technology and design of nuclear weapons and their means of production. The next five weeks will look at the role they played in the Cold War, the organizations that managed them, the technologies that were developed to deliver them, and the methods used to analyze nuclear force structures and model nuclear exchanges. The last six weeks of the course will look at theories and cases of nuclear decision making beyond the original five weapon states, and will look particularly at why states pursue or forego nuclear weapons, the role that individuals and institutions play, and the potential for both new sources of proliferation and new consequences.

From 1945 to 1991, the United States and the Union of Soviet Socialist Republics (USSR) engaged in the Cold War, a conflict in which the communist Soviet Union and the democratic United States competed for influence over countries around the world. During this era, the US and USSR also took their rivalry beyond earth into space through a series of aeronautic developments and flight tests known as the Space Race. After advances in defense technology during World War II and the United States’ use of atomic bombs, each side looked to propel its scientific and technological capability forward by building new missiles, rockets, and spacecraft. The Soviets had many early successes in the Space Race, including the launch of the first satellite, Sputnik (1957), and the first man in space, Yuri Gagarin (1961). However, the United States caught up and eventually overtook the Soviet Union, particularly when American astronaut Neil Armstrong and the crew of the Apollo 11 mission became the first humans to land on the moon in 1969.

This collection uses primary sources to explore women in the antebellum reform movement. 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.