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Max's Ch. 27 Timeline
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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,"That was the last time the Pledge has changed. -
First White House speech airs on TV
On this day in 1947, President Harry S. Truman delivered the first televised presidential address from the White House — to a limited audience. Television was still in its infancy: There were only about 44,000 TV sets in U.S. homes, concentrated in a few cities, compared with some 40 million radios. -
• Transistor is invented, spurring growth in computers and electronics.
The first transistor was invented at Bell Laboratories. It later made possible the integrated circuit and microprocessor that are the basis of modern electronics. Although video was possible with vacuum tube equipment, as was the case with the Ampex VRX-1000, without the transistor video products would never have gotten very small. -
• Polio vaccine announced to the world by Dr. Jonas Salk and Dr. Thomas Francis
On April 12, 1955 an official announcement was made that Dr. Jonas Salk has ... with microbiologist Thomas Francis Jr., Salk developed the first vaccine on influenza and was used extensively by the Armed Forces in World War II -
• The first nuclear power plant in the U.S. goes online at Shippingport, Pa
Dec. 2, 1957: Nuclear Power Goes Online. By Randy Alfred Email 12.02.08. Pennsylvania's Shippingport facility was the first full-scale commercial nuclear power plant in the United States. -
• NASA is established
NASA was established by the National Aeronautics and Space Act on July 29, 1958, replacing its predecessor, the National Advisory Committee for Aeronautics (NACA). The agency became operational on October 1, 1958.
