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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- Can you visit Fleming's laboratory?
“Alexander Fleming's lab at St. Mary's Hospital in London, where he discovered penicillin, is now a museum.”
Reference: Imperial College Healthcare NHS Trust
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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.
What countries make up the United Kingdom?
The UK is made up of four countries: England, Scotland, Wales, and Northern Ireland.