Mr. and Mrs. Emory Harrison of Jonesboro, Tenn., had 13 children, all boys, making the largest all-male American family in 1955.

Amazingly, they made this crowded life seem pretty easy. Emory told the St. Petersburg Times that they spent only $12 to $15 a week on food, since they could grow most of what they needed on their 70-acre farm. And he boasted that he’d spent less than $50 on medical bills in 22 years of married life.

The Harrisons found immortality in algebra textbooks, which are forever asking the odds of this outcome. If both genders are equally likely, the chance is 1 in 8,192.

A tiny detail, but I thought it was interesting: Scottish writer Henry Drummond believed that sub-Saharan Africa was so well networked with footpaths that an explorer could walk from Zanzibar westward “never in fact leaving a beaten track” until “his faithful foot-wide guide lands him on the Atlantic seaboard.” From his Tropical Africa of 1888:

Now it may be a surprise to the unenlightened to learn that probably no explorer in forcing his passage through Africa has ever, for more than a few days at a time, been off some beaten track. Probably no country in the world, civilized or uncivilized, is better supplied with paths than this unmapped continent. Every village is connected to some other village, every tribe with the next tribe, every state with its neighbour, and therefore with all the rest. The explorer’s business is simply to select from the network of tracks, keep a general direction, and hold on his way.

This is repeated in J.W. Gregory’s The Story of the Road (1931) and in M.G. Lay’s Ways of the World (1992). Gregory admits only afterward that this may have been true in Nyasaland, the district that Drummond had visited, but it’s hardly the case elsewhere. “One evening, after the porters had suffered one of many repeated disappointments at not finding a human path, I removed their gloom, as they sat around the camp fires, by translating to them the passage from Henry Drummond. Their laughter showed that they concluded that the reports of European travellers, like those they told themselves on their return to the coast, were not always to be taken literally.”

For 20 years, someone stocked a Coke machine on Seattle’s Capitol Hill with obscure, sometimes discontinued drinks such as Grape Fanta, Mountain Dew White Out, Hawaiian Punch, and raspberry Nestea Brisk. The price was 75 cents, and each button read simply “? MYSTERY ?”

The machine stood in front of Broadway Locksmith on John Street, but the locksmith claimed to know nothing about its operator. When the city passed a tax on sugary drinks in January 2018, the machine raised its price to $1.00. Six months later, it disappeared, leaving only a message on its Facebook page: “Going for a walk, need to find myself. Maybe take a shower even.”

It hasn’t been seen since. Do machines take walks?

Susan Finden named her cat Casper because he kept disappearing, visiting doctor’s offices, office buildings, and pharmacies near her Weymouth home. When she moved to Plymouth in 2006 she was too busy to monitor his daily activities, and so three years later she was surprised to learn that he was riding buses. The drivers, who looked out for him, told her that he would journey 11 miles to the city center and back, sitting on a favored seat. They would let him out opposite his house.

“I couldn’t believe it at first, but it explains a lot,” she said. “He loves people and we have a bus stop right outside our house so that must be how he got started — just following everyone on.”

Ironically, or perhaps inevitably, he was finally killed by a taxi. The news of his death brought condolences from around the world, and Finden wrote a best-selling book. “He will be greatly missed,” she wrote in a note posted on Casper’s usual bus stop. “He was a much-loved pet who had so much character. Thank you to all those who befriended him.”

In The Ouija Book (1979), Gina Covina writes, “Whatever your work or field of interest, it brings an added richness to your Ouija sessions, and Ouija will return this richness by sparking new ideas and reflecting imaginative perspectives back on your field of interest.” One day, “in a particularly domestic mood,” she sat at her Ouija table and found herself copying down this recipe:

Mix together equal parts peanut butter, honey, and nutritional yeast. Add raisins or nuts if desired. Make into balls and roll balls in coconut.

She calls it “Goo Ball,” “an excessively healthful candy that provides all the B vitamins in doses larger than you’ll find anywhere.” Where it came from, exactly, is unknown — proceed at your own risk.

On Boxing Day 1927, the Thames sailing barge Lady Daphne entered the difficult waters of the Isles of Scilly and passed with seeming assurance among its many rocky hazards. At length she began to veer toward land, though, and the islanders dispatched a lifeboat, which caught up with the ship just as she beached herself safely on the island of Tresco.

The only living thing aboard was a canary in a cage. Daphne‘s skipper had been washed overboard, and the remaining two crew members had abandoned the barge off the Cornish coast. Unmanned, she had somehow sailed herself among the rocks to a patch of safe sand.

In August 1947 a British South American Airways airliner en route from Buenos Aires to Santiago crashed into Mount Tupungato in the Argentine Andes. The wreckage wasn’t located for 50 years, but it’s believed today that, hindered by the jet stream, the pilots had started their descent before they’d cleared the mountaintops and crashed into Tupungato.

The last Morse code message received by the Santiago airport was “ETA SANTIAGO 17.45 HRS STENDEC.” The operator didn’t recognize the last word and asked that it be sent again. The flight transmitted STENDEC twice more and then was lost. The meaning of that last transmission is unknown — despite much speculation, it’s never been definitively explained.

In 1942, homesick GI Carl K. Lindley was ordered to repair a local signpost in the Yukon. He decided to add an indicator pointing to his hometown: DANVILLE, ILL. 2835 MILES. Others began adding their own signs, and today the “Sign Post Forest” holds 80,000 signs. It’s actively accepting more — you can bring your own or make one at the visitor information center.

During the last glacial period, at around 50,000 B.C., a 5-cubic-meter boulder became wedged into a crevasse in Scandinavia, just southwest of the village of Lysebotn in western Norway.

The boulder is accessible to tourists, but be careful: There are no fences, and the abyss below is 984 meters deep.