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Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
Did you know?
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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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).