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Chapter 27, Postwar Years at Home
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Harry Truman becomes the first president to address the nation on TV from the White House
On October 5, 1947 Harry Truman became the first president to adress the United States from the White House on TV. This adress was used to ask the American people to conserve their food. Harry Truman asked them to do this because of the starving people in Europe. -
Transistor was Invented
The first transistor was invented on November 27, 1947, at Bell Laboratories. It was invented by William Shockley, John Bardeen, and Walter Brattain. The invention of the transistor spurred the use of electronics like radios and televisions. -
"Under God" added to Pledge of Allegiance
On June 14, 1954, congress added the words "Under God" to the United States Pledge of Allegiance. The Knights of Columbus campaigned for congress to add these words to the pledge. Eisenhower liked this change because he felt it was necessary after World War 2. -
Polio vaccine announced by Dr. Jonas Salk and Dr. Thomas Francis.
On April 12, 1955, Dr Jonas Salk and Dr. Thomas Francis announced to the world that they had discovered a vaccine for Polio. This cure was developed in the University of Pittsburgh medical labs. On this day, they announced that the vaccine was proven both safe and effective. -
The first nuclear power plant in the U.S. goes online at Shippingport, Pa.
On May 26, 1958 the first commercial nuclear power plant in the United States, Shippingport nuclear power plant, was opened by President Dwight D. Eisenhower. This was a great scientific breakthrough in the United States' technology. This paved the road for more nuclear power plants to be opened in the future. -
NASA is Established
NASA was established on July 29, 1958. NASA stands for National Aeronautics and Space Administration. NASA was developed in order to stay up to date with the Soviet Union and their space technologies.
