PBS offers a comprehensive look at the presidency of Harry S. Truman. Content includes a very detailed biography, a look at his domestic and foreign politics, enduring legacy, and more. Primary sources supplement the content, and a teacher guide is even included.

Short descriptions of important technological innovations produced in America and the date of their introduction.

J. Robert Oppenheimer is credited with the creation of the atomic bomb. But, "The country asked him to do something and he did it brilliantly, and they repaid him for the tremendous job he did by breaking him." This documentary traces the life of this brilliant nuclear physicist to his humiliation for doing a task that he was asked to do. [2:00:00]

This site has information about the atomic bomb which was dropped on Hiroshima. Pictures of Hiroshima after the bomb and the mushroom cloud are included.

This collection uses primary sources to explore the Atomic Bomb and the Nuclear Age it started. 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.

Site from Yale provides detailed information about the radiation sickness that swept through the bombed areas of Japan after WWII. Detailed and thorough analysis.

Here you will find a video and photo gallery of the plane that dropped the first atomic bomb. This is the online version of the former exhibition of the plane.

Detailed background information and a collection of resources are provided to help one understand the history of the bombings of Hiroshima & Nagasaki. Material consists of original texts, eyewitness accounts, photographs, videos, and color maps. A very informative site.

This resource provides data about the physical destruction of Nagasaki, the medical aspect, and survivor stories.

This video segment adapted from FRONTLINE looks at nuclear fission as an energy source that can be used to generate electricity. [2:49]

A wonderful PBS biography of a great man. This contains many personal touches, yet does a fine job of describing Bohr's scientific work. But it's best at Bohr the man. Nice quotes, one in the middle, one at the end.

In-depth analysis of the decision to create and drop the atomic bomb on Japan during World War II. Includes details on the Interim Committee.

U.S. History is designed to meet the scope and sequence requirements of most introductory courses. The text provides a balanced approach to U.S. history, considering the people, events, and ideas that have shaped the United States from both the top down (politics, economics, diplomacy) and bottom up (eyewitness accounts, lived experience). U.S. History covers key forces that form the American experience, with particular attention to issues of race, class, and gender.Senior Contributing AuthorsP. Scott Corbett, Ventura CollegeVolker Janssen, California State University, FullertonJohn M. Lund, Keene State CollegeTodd Pfannestiel, Clarion UniversityPaul Vickery, Oral Roberts UniversitySylvie Waskiewicz

U.S. History is designed for a two-semester American history sequence. It is traditional in coverage, following a roughly chronological outline, and using a balanced approach that includes political, economic, social, and cultural developments. At the same time, the book includes a number of innovative and interactive features designed to enhance student learning. Instructors can also customize the book, adapting it to the approach that works best in their classroom.