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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- Are most people with a penicillin allergy actually allergic?
“About 10% of Americans say they're allergic to penicillin, but fewer than 1% actually are, according to the CDC.”
Reference: Centers for Disease Control and Prevention (CDC)
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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.
Breast implants are at best a short-term improvement
Health regulators estimated that up to 93 percent of silicone breast implants ruptured within 10 years.