How did the Louisiana Purchase change the size of the US?
In 1803 the US bought the Louisiana Territory from France for about $15 million. The deal roughly doubled the size of the country.
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- Who was the first American civilian saved by penicillin?
“In 1942, Anne Miller became the first American civilian saved by penicillin when it cured her of a life-threatening infection.”
Reference: Smithsonian Magazine
More united states facts.
More united states facts
How did Alexander Fleming discover penicillin?
In 1928, Alexander Fleming returned from vacation and noticed that a mold growing in one of his bacteria dishes had killed the bacteria around it. That mold produced penicillin.
Microwaves in U.S. households
In 1978, only eight percent of U.S. households had microwave ovens. As of 2006 over 80 percent have them.