-
• The first nuclear power plant in the U.S. goes online at Shippingport, Pa
the world's first full-scale atomic ... Generating Station on the Ohio River in Beaver County, Pennsylvania, USA -
Period: to
1945's 1958;s
-
• Harry Truman becomes the first president to address the nation on TV from the White House.
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 -
Transistor is invented,
Transistor is invented, spurring growth in computers and electronics. Another computer development spurred by the war was the Electronic* -
Polio Vaccine Trial Announcement
Polio Vaccine Trial Announcement ... Health, announced to the world that the Salk polio vaccine was up to 90% effective in preventing paralytic polio. -
• President Eisenhower and Congress add the words “Under God” to the Pledge of Allegiance.
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 -
nasa is established
NASA and the Library of Congress have established the Baruch S. Blumberg NASA-Library of Congress chair in Astrobiology at the Library's