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Period: to
tyler's chapter 27 timeline
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harry truman becomes the first president to adress the nation on tv
president truman deliverd the first tv presidential address from the white house. to a limited audiemce -
transistor invintor
a computer invented durring 1948the invention changed the computers development. the first development spurred from the war of electronical -
"under god " to the pledge of allegiance.
one nation under god redirects here. it goes from. " i pledge allegiance to the flag and the republic for which is stands one nation indivisible with liberty and justice for all. to one nation under god indivisible with liberty and justice for all -
polio vaccine
Until 1955, when the Salk vaccine was introduced, polio was considered the most frightening public health problem of the post-war United States. Annual epidemics were increasingly devastating. The 1952 epidemic was the worst outbreak in the nation's history. Of nearly 58,000 cases reported that year, 3,145 people died and 21,269 were left with mild to disabling paralysis, -
nuclear power plant
breeder reactor at Shippingport, Pennsylvania — the first in the United States — goes to full power on the anniversary of Chicago Pile-1. An experimental breeder reactor devised by Chicago Pile-1 veteran Walter Zinn had created the first nuclear-generated electricity in 1951 -
NASA
NASA was established by the National Aeronautics and Space Act on July 29, 1958, replacing its predecessor, the National Advisory Committee for Aeronautics (NACA).
