Thomas Edison received three months of formal education at the age of eight before his mother homeschooled him. Benjamin Franklin quit school at age ten, Charles Dickens at twelve.
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Walter Kirke, British deputy head of military intelligence in France, noted in his diary in October 1915 that the chief (“C”) of the Secret Intelligence Service had come upon a solution for how to send secret messages: “Heard from C that the best invisible ink is semen,” Kirke wrote. The substance, it turned out, was hard to detect by the common revealing method of iodine vapor. The chief’s name: Mansfield Cumming.
Before the entire palette of modern mathematical notation existed, Johannes Kepler relied on musical notation to describe the planets’ rotation around the sun in his Harmonies of the World, published in 1619. The plus and minus signs were introduced in print in 1489 by Johann Widman, and the equal sign in 1557 by Robert Recorde, but the multiplication sign (×) was not introduced until 1631, by William Oughtred; modern exponential notation in 1637, by René Descartes; and the obelus (÷) to indicate division in 1659, by Johann Rahn.
An antigerm campaign to outlaw the shared drinking cups used at public fountains spread through the United States in 1911. One pamphlet referred to the “cup of death”; another showed the Grim Reaper enticing a young girl to take a sip. Illinois declared the practice “as antiquated as the ducking stool and the inquisition,” while the American Medical Association noted a curious new “jet apparatus” that could keep a child’s lips from touching a water spout.
The Communist Party of China considered “revolution in mind” a prerequisite for political emancipation in the 1940s. Work reports tell of “speaking bitterness” sessions—in which peasants would share stories of their oppression—sometimes referred to as “turn-over-mind meetings.” The meetups later served as inspiration for feminist consciousness-raising groups in the United States during the 1970s.
Beaver fur can contain between 12,000 and 23,000 hairs per square centimeter, and it is particularly good for making thick, pliable, water-resistant felt. In 1733 the Hudson Bay Company valued one prime-quality beaver skin at the same worth as one brass kettle, two pounds of Brazilian tobacco, one gallon of brandy, or a pound and a half of gunpowder.
After the suicide of one of his former patients, Zimbabwe-based psychiatrist Dixon Chibanda began training local grandmothers in evidence-based talk therapy. Since 2006 over four hundred grandmothers have been trained to deliver free services in more than seventy communities across the country while sitting on a “friendship bench” next to a local clinic. Friendship-bench patients were found after six months to have improved more significantly than patients receiving standard care. “I value human beings so much,” said one grandmother in the program. “I introduce myself and I say, ‘What is your problem? Tell me everything, and let me help you with my words.’ ”
“If ever a loss at sea fell under the definition, in the terms of a bill of lading, of Act of God,” Joseph Conrad wrote, “this one does, in its magnitude, suddenness, and severity; and in the chastening influence it should have on the self-confidence of mankind.” The sentence ends the first paragraph of his 1912 essay “Some Reflections on the Loss of the Titanic.”
“Kings embodied the whole period of their reign,” wrote Elias Canetti in Crowds and Power. “Their death, whether it came with the decline of their strength or, as later, coincided with their natural span of life, indicated a break in time. They were time. Between one king and the next, time stood still. There was a gap in it—an interregnum—which people sought to keep as short as possible.”
A cuneiform tablet dating to around 1950 bc describes residents of the Assyrian merchant colony of Kanesh, situated in what is now central Turkey, resolving conflicts by majority vote. This early example of a protodemocratic decision-making process is a sharp contrast with the consensus-based systems more commonly found in primitive societies, where “the restoration of social harmony is the primary goal,” notes Assyriologist Mogens Trolle Larsen. “This was clearly not a realistic aim for the Old Assyrian merchant society.”
When a theologian renting from ninth-century Islamic philosopher al-Kindi hosted two cousins for a monthlong visit, the landlord increased the rent proportionally. His reasoning: a dwelling has a “limited existence.” A tenant enjoys this without the burden of ownership, then leaves the space “a dung heap and in dilapidation, only repairable at grievous expense.”
A surgeon in the British navy published an 1816 treatise on “The Incubus, or Nightmare, Disturbed Sleep, Terrific Dreams, and Nocturnal Visions,” arguing against folk beliefs that nightmares resulted from overindulgence and sleeping on one’s back. Sufferers “can bear testimony to the distress and alarm,” he wrote, “in many cases rendering the approach of night a cause of terror, and life itself miserable.”
“Utter damned rot!” is what William Berryman Scott, a former president of the American Philosophical Society, said in response to Alfred Wegener’s theory of continental drift, first proposed in 1912. “Wegener is not seeking the truth,” said a doubtful geologist, “he is advocating a cause and is blind to every argument and fact that tells against it.”
A seventeenth-century Jesuit missionary to China once related a story about a Nanjing man who sued a local deity, his case being that the god had accepted his sacrifices but failed to save his ailing daughter and so must be either impotent or malicious. District officials balked but referred the case to the imperial court in Beijing, which ruled against the deity—declaring it officially useless, exiling its cult statue, and ordering its monastery be destroyed.
A nineteen-year-old boy diagnosed with Hodgkin’s lymphoma requested help from the Make-A-Wish Foundation in 1998 to hunt a moose with his father. His request was denied. A year later the foundation instituted a national ban on firearm-related wishes, and the boy’s mother founded Hunt of a Lifetime, an organization devoted to sending terminally ill children deep-sea fishing or on hunting trips for sheep, elk, moose, or bear.