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Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
The longest a person has survived after a heart transplant is 24 years.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
Everyone has one nostril that is larger than the other.
Did you know?
The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.