Left-Handedness and Age

Twelve percent of American 20-year-olds are left-handed, but only 5 percent of 50-year-olds and fewer than 1 percent of people over 80.

Does this mean that more lefties are being born today? Or that older generations were forced to switch hands? Or that southpaws die sooner? No one knows.

Rongorongo

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Statues aren’t the only mystery on Easter Island. Tablets found on the island bear a mysterious script, known as rongorongo, that has never been successfully deciphered.

Some scholars have pointed out similarities between the strange characters and the prehistoric script of the Indus Valley in India, 6,000 miles away, but others dispute this.

The islanders themselves give eager and varying accounts to archaeologists and historians, and perhaps they themselves don’t know. Some say that rongorongo means peace-peace, and that the documents record treaties, perhaps with visitors to the island.

So far, none of the attempts at translation have withstood peer review.

The Best of Times

German arithmetician Zacharias Dase (1824-1861) once multiplied two 100-digit numbers in his head. It took him 8 hours 45 minutes.

Karl Gauss estimated that even a skilled mathematician, using pencil and paper, would require fully half that time.

An Early Serial Killer

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Wander too far away from the World’s Columbian Exposition of 1893 and you might disappear forever.

Herman Mudgett, an enterprising serial killer, built a row of three-story buildings near the Chicago fair and opened it as a hotel. Guests discovered — too late — that it was a maze of more than 100 windowless rooms, where Mudgett would trap them, torture them in a soundproof chamber, and then asphyxiate them with a custom-fitted gas line.

Then he’d send the bodies by chute to the basement, where he’d cremate them or sell them to a medical school.

This went on for three years, until a fire broke out and police and firemen discovered the trap. No one knows how many people Mudgett killed; he confessed to 27, but estimates go as high as 230.

He was hanged in Philadelphia in 1896.

An All-Purpose Anthem

Americans think of the song “My Country, ‘Tis of Thee” as a patriotic anthem — which is ironic, because everyone else does, too. We stole the tune from the British, who know it as “God Save the Queen,” and the same melody has served as the national anthem of Denmark, Russia, Sweden, Switzerland, Norway, and Liechtenstein.

When England met Liechtenstein in a Euro 2004 qualifying football match, they had to play the same music twice.