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features 40 documents from 23 Presidents -- Washington's first inaugural address, Adams' description of his reception by King George III as America's first minister to Great Britain, Adams' letter ordering the relocation of government offices from Philadelphia to D.C., Lincoln's instructions to the commander at Fort Sumter, Roosevelt's letter thanking Oppenheimer and his colleagues for their ongoing secret atomic research, and more. (Library of Congress)
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In the midst of World War II when the United States was engaged abroad in a major conflict with Germany and Japan, it was also working furiously at home toward the completion of the Manhattan Project. This huge research and development project was begun in June 1942 to develop a superexplosive weapon based on the nuclear fission process. |
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Pencil sketch of Abraham Lincoln |
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