Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
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Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Women are 50% to 75% more likely than men to experience an adverse drug reaction.
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If you could remove all of your skin, it would weigh up to 5 pounds.
How to find the maximum and minimum of a quadratic relation
Elephant (Loxodonta africana) herd drinking at water hole. Etosha National Park, Namibia.
Sol Duc Falls in Olympic National Park, Washington.