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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.