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chapter 27
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Harry Truman becomes the first president to address the nation on TV from the White House
Truman adressed the nation from the White House. He was the first president to ever do this. He even aired an advertisment on television as well. -
Transistor is invented, spurring growth in computers and electronics
This was a new device used as a radio. This invention changed the ways computers were developed. -
President Eisenhower and Congress add the words “Under God” to the Pledge of Allegiance
President Eisenhower encouraged Congress to add the words "under God," It created the 31-word pledge we say today. Some people objected this alteration, but more agreed with it. -
Polio vaccine announced to the world by Dr. Jonas Salk and Dr. Thomas Francis.
Dr. Thomas declared the vaccine to be safe and effective on April 12, 1955. It was exactly ten years to the day after the death of President Roosevelt. -
The first nuclear power plant in the U.S. goes online at Shippingport, Pa
The Shippingport Atomic Power Station was the world’s first atomic electric power plant devoted exclusively to peacetime uses. -
NASA is established
It may well be argued that NASA has become the world's premier agent for exploration, carrying on in "the new ocean" of outer space a long tradition of expanding the physical and mental boundaries of humanity.
