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Bobby Cieslak's chapter 27 timeline
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Harry Truman becomes the first president to address the nation on TV from the White House
On this day in 1947, President Harry S. Truman delivered the first televised presidential address from the White House. ... a White House telecast to the nation, he was not the first president to appear on television. ... In 1948, Truman also became the first presidential candidate to air a paid political ad on TV. -
Transistor is invented, spurring growth in computers and electronics.
Another computer development before the war was the Electronic. By 1948, the invention of the transistor greatly changed the computer's development. -
President Eisenhower and Congress add the words “Under God” to the Pledge of Allegianc
The Pledge of Allegiance of the United States is an expression of loyalty to the federal flag and the republic of the United States of America, originally composed by Christian Socialist Francis Bellamy (1855-1931) in 1892 and formally adopted by Congress as the pledge in 1942.The Pledge has been modified four times since its composition, with the most recent change adding the words "under God" in 1954.
Congressional sessions open with the recital of the Pledge, as do government meetings at -
Polio vaccine announced to the world by Dr. Jonas Salk and Dr. Thomas Francis.
Jonas Edward Salk was an American medical researcher and virologist, best known for his discovery and development of the first safe and effective polio vaccine. He was born in New York City to parents from Ashkenazi Jewish Russian immigrant families. Although they themselves did not have much formal education, they were determined to see their children succeed. -
The first nuclear power plant in the U.S. goes online at Shippingport, Pa.
The Shippingport Atomic Power Station, "the world’s first full-scale atomic electric power plant devoted exclusively to peacetime uses," (though the British Magnox reactor at Calder Hall was first connected to the grid on 27 August 1956, it also produced plutonium for military uses was located near the present-day Beaver Valley Nuclear Generating Station on the Ohio River in Beaver County, Pennsylvania, USA, about 25 miles (40 km) from Pittsburgh. The reactor went online December 2, 1957. -
NASA is established
The National Aeronautics and Space Administration (NASA) is the agency of the United States government that is responsible for the nation's civilian space program and for aeronautics and aerospace research. Since February 2006, NASA's mission statement has been to "pioneer the future in space exploration, scientific discovery and aeronautics research." On September 14, 2011, NASA announced that it had selected the design of a new Space Launch System that it said would take the agency's astro
