A light-year is the distance traveled by light in a single year—5,878,499,810,000 miles, or 9,460,528,400,000 kilometers. So, despite how it sounds, when we talk about things being “light-years away,” we’re not talking about an enormously vast amount of time but rather an enormously vast distance. The stories behind 34 more misleadingly misnomers are explained here.
1. Chinese Checkers
This game isn’t a form of checkers, nor is it from China. It was invented in Germany in 1892; the name was changed to make the game more marketable in the late 1920s.
2. Arabic Numerals
Arabic numbers (1, 2, 3, 4, 5 ...) originated in India, not the Arabian Peninsula. They’re named for the Arabian mathematicians who introduced them to Europe in the Middle Ages.
3. The Fibonacci Sequence
And while we’re on the subject of math, the Fibonacci sequence, in which each number is the sum of the previous two (1, 1, 2, 3, 5, 8, 13, 21...), was first discussed by Indian scholars several centuries years before Fibonacci.
4. The Pythagorean Theorem
The Babylonians had an understanding of the Pythagorean Theorem more than 1000 years before Pythagoras.
5. and 6. Koala Bears and King Crabs
7. and 8. Glowworms and Fireflies
9. and 10. Horned Toads and Slow Worms
11. and 12. Starfish and Jellyfish
13. Velvet Ants
Despite looking like fashionable ants, velvet ants are actually wasps.
14., 15., 16., and 17. Strawberries, Blueberries, Raspberries, and Blackberries
Strawberries aren’t berries. And neither are blueberries, raspberries, or blackberries. By definition, berries have to be produced from a single ovary, like a redcurrant or a grape ... or a banana. Confused? Well…
18., 19., and 20. Peanuts, Coconuts, and Walnuts
Peanuts aren’t nuts, but they are related to peas. Coconuts and walnuts aren’t nuts either, but rather “drupes”—like dates, coffee beans, and olives—which are fleshy fruits surrounding a hard shell containing a seed. Hazelnuts and chestnuts, however, are true nuts, as are acorns.
21. Panama Hats
Panama hats come from Ecuador. The term Panama hat was in use as early as the 1830s, but the term—and the hats themselves—grew in popularity after then-President Theodore Roosevelt visited the Panama Canal construction site wearing one in 1906.
22. English Horns
English horns come from Poland. And they aren’t horns, but woodwind instruments related to the oboe.
23. Jerusalem Artichokes
Jerusalem artichokes come from North America. The “Jerusalem” part of the name might be a corruption of the Italian word for “sunflower,” girasole—because the Jerusalem artichoke isn’t an artichoke at all, but a member of the sunflower family.
24. Bombay Duck
Bombay duck is actually a fish. According to the BBC, there are a few theories as to how the fish got its moniker, the most popular of which is that “that the name came from the British mail trains that huffed odoriferous orders of dried fish from the city to the interior of India. These wagonloads became known as ‘Bombay Dak.’ (The word dak means ‘mail.’)”
25. Pont Neuf Bridge
Paris’s Pont Neuf is the oldest bridge in the city, but its name still means “new bridge.” It was completed in 1607.
26. The Isle of Dogs
The Isle of Dogs in central London isn’t an island, but rather a peninsula-like loop of land surrounded on three sides by the river Thames.
28. Funny Bone
When you hit your funny bone, you’re actually hitting your ulnar nerve. According to the Oxford English Dictionary, the name funny bone is “probably at least partly punning on the homophones humerus”—the upper bone of the arm—“and humorous.”
29. The Battle of Bunker Hill
This Revolutionary War battle mainly took place on nearby Breed’s Hill in Boston.
30. Thousand Islands
There are more than 1500 islands in North America’s Thousand Islands archipelago.
31. Napoleon’s Hundred Days
Napoleon’s Hundred Days—the period between his return from exile on March 20, 1815 to the restoration of the French monarchy on July 8—lasted 111 days.
32. The Thousand Days’ War
The Thousand Days’ War (also known as The War of a Thousand Days) lasted 1130 days.
33. The Thirty Days’ War
The Thirty Days War—a.k.a. the Greco-Turkish War—was part of a series of larger skirmishes that lasted 304 days.
34. The Hundred Years’ War
The Hundred Years’ War lasted 116 years. (But the Eighty Years’ War did last eighty years.)
A version of this story ran in 2015; it has been updated for 2022.