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Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
Did you know?
Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
Did you know?
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.