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the world's first full-scale atomic ... Generating Station on the Ohio River in Beaver County, Pennsylvania, USA
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With this speech to the National Association for the Advancement of Colored People at the Lincoln Memorial in Washington, D.C., Truman becomes the first President to address the NAACP. He states there is no justifiable
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Transistor is invented, spurring growth in computers and electronics. Another computer development spurred by the war was the Electronic*
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Polio Vaccine Trial Announcement ... Health, announced to the world that the Salk polio vaccine was up to 90% effective in preventing paralytic polio.
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In 1954, in response to the Communist threat of the times, President Eisenhower encouraged Congress to add the words "under God," creating the 31-word
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NASA and the Library of Congress have established the Baruch S. Blumberg NASA-Library of Congress chair in Astrobiology at the Library's