In 1864, the first barbiturate (barbituric acid) was synthesized.
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Everyone has one nostril that is larger than the other.
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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
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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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Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.
Stages of Health Behavior Change
Change in air temperature at various air flow rates for a 4 pass operation