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.

| Science & Math

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.

| Crime · Death · History · Oddities

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.

| Art · Trivia

“The Lindow Man”

In 1963, Peter Reyn-Bardt killed his wife and buried her in a peat bog in Cheshire County, England. Twenty years later, when a body was discovered, he assumed he’d been caught and turned himself in.

He should have waited. An investigation showed that the body was not his wife’s, but that of an Iron Age man who had died two thousand years earlier and been eerily preserved in the cold acid bog.

They convicted Reyn-Bardt anyway.

| Crime · Oddities

The Devil’s Footprints

On the morning of Feb. 8, 1855, residents of Devon, England, awoke to find a series of prints in the snow. Resembling cloven hooves, the “devil’s footprints” ran through the countryside for more than 100 miles, largely along straight lines and seemingly unimpeded by rivers, haystacks and other obstacles.

Some attribute the prints to hopping mice, whose jumps can leave hooflike marks, but they’d have to be pretty ambitious mice — the tracks covered more than 100 miles, topping houses and high walls. On the other hand, no one has offered a better explanation.

| Oddities