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In 1864, the first barbiturate (barbituric acid) was synthesized.

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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

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Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

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Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

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