Lucian claims in his True History to have traveled to the moon. There, he writes, he encountered a tribe of Treemen whose reproductive method was to cut off and plant a man’s right testicle, let it grow into “an enormous tree of flesh, like a phallus,” then harvest and carve men from its large acorns. Wealthy Treemen were given genitals of ivory; the poor got wood.

A seventh-century Chinese treatise declares after “careful investigation” that “there are but thirty main positions for consummating the sexual union.” These include Bamboos Near the Altar, Reversed Flying Ducks, Phoenix Holding Its Chicken, Cat and Mouse in One Hole, and Donkeys in the Third Moon of Spring. “The understanding reader,” it concludes, will “probe their wonderful meaning to its very depth.”

Jin dynasty general Yuanzi once peeked in on a soothsaying Buddhist nun while she bathed. He watched her carve open her belly, take out her viscera, and cut off her own head. Later, the nun emerged intact. “If you remove or bully the supreme ruler,” she told Yuanzi, “your body should be like that.” The general was disappointed; he had been planning a coup but now reconsidered. 

A common belief in antiquity was that bees were born of decaying ox flesh. Virgil instructs in his Georgics to stop up a young bullock’s nostrils and mouth, beat it “to a pulp through the unbroken hide,” shut the carcass in a small room to ferment, and await the bees that will burst out “like a shower pouring from summer clouds.”

“There were very few beauties,” wrote Jane Austen to her sister about a party she attended in 1800. The two Miss Maitlands had “a good deal of nose”; the General, “the gout”; Mrs. Maitland, “the jaundice”; and regarding Susan, Sally, and Miss Debary, Austen was “as civil to them as their bad breath would allow.”

Swordfish, perhaps the world’s fastest swimmers, secrete performance-enhancing grease from the base of their swords that helps them swim at an estimated sixty-two miles per hour. “This isn’t ordinary fish slime,” said a researcher in 2016. 

When early nineteenth-century corset fashion shifted from the buxom “Venus ideal” to the slimmer “Diana ideal,” it became popular for women to wear the garment but claim they weren’t. “Actresses would say, ‘I don’t need to wear a corset,’” historian Valerie Steele noted in 2012, “but you look at their photograph and you go, ‘Babe, you are so wearing a corset.’”

A UK fashion student announced plans to harvest the DNA of late couturier Alexander McQueen—extracted from hair used in his 1992 collection “Jack the Ripper Stalks His Victims”—to develop epidermal material for a line of leather jackets and bags. The lab-grown skin will feature McQueen’s freckles, moles, and tattoos, and be susceptible to sunburn. 

Before Michelangelo’s David was placed in Florence’s Piazza della Signoria in 1504, Leonardo argued the nude sculpture needed “a decent ornament” and sketched it with underpants inked on. David was later fitted with a prim brass girdle sustaining twenty-eight copper leaves. It remained for at least forty years. 

Though described by Suetonius as having a “fat neck” and “potbelly,” Nero competed at the Olympics in 67, in the chariot race. He fell out of his vehicle and failed to finish but paid hefty bribes to the judges and secured first place.

Menstrual taboos persisted in nineteenth-century Europe. In the Rhine it was said that women on their periods turned fermenting wine to vinegar, in France that they were unable to whip up a successful batch of mayonnaise, in Britain that “women should not rub the legs of pork with the brine-pickle at the time they are menstruating, or the hams will go bad.”

A Babylonian medical handbook dating to 1700 bc offers a renal diagnostic that reads, “If his urine is like ass urine, that man suffers from ‘discharge.’ ” Other alarming symptoms of discharge: if his urine is “like beer dregs,” “like wine dregs,” or “like clear paint.”

Roman gladiators’ vegetarian diet was so full of beans and barley they were called hordearii, “barley men.” While serving as a gladiator-school physician, Galen criticized the diet; it built up bodies “not with dense and compressed flesh,” he wrote, “but instead rather more spongy.”

“He whose meat in this world do I eat,” reads the Hindu Laws of Manu, “will in the other world me eat.” Another verse simply warns not to “behave like the flesh-eating ghouls.” 

A French tale from 1615 contains a rare early modern mention of a married woman considering birth control. Her method: pressing a bead of perfume on “that artery that the vulgar calls the pulse” during intercourse. The procedure fails—not due to its own inadequacies, the reader is told, but because the woman, so taken by her activity, neglects to apply the perfume.