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Did you know?
In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
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There are more sensory neurons in the tongue than in any other part of the body.
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There are more bacteria in your mouth than there are people in the world.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.