Did you know?
Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.
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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
In the Tai Forest a female chimp demonstrates a skill once thought to be unique to humans. Here she
Divorce Rates, Selected Countries In many countries divorce rates have risen in recent decades.
Selected Corticosteroids
Selected Vaccines and Their Schedules
Topic Media
Selected Cancers with Inherited Predisposition