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Nov 9, 2026
A Spanish coin circulated as American currency—which symbol?
The dollar sign ($) likely evolved from the Spanish peso symbol 'P' superimposed with 'S', representing pieces of eight that circulated widely in early…
Nov 9, 2026
One English condiment is named for Chinese fermented fish sauce
The word 'ketchup' derives from the Chinese Hokkien 'kê-tsiap', which referred to a fermented fish sauce with no tomatoes—and when British traders brought the…
Nov 8, 2026
You arrive with 64 more of these than you'll take to college
A newborn's skeleton is mostly cartilage, and many bones are still in pieces—your kneecap, for instance, doesn't fully harden until you're three or four. The…
Nov 8, 2026
A bird's claw is as long as your thumb—which one?
The cassowary's reputation is backed by documented fatalities: in 1926, Australian teenager Phillip McClean bled to death in minutes after a cassowary kicked…
Nov 7, 2026
What body of water holds more than all of North America's Great Lakes?
The Caspian Sea contains more water than all of North America's Great Lakes combined—roughly 78,200 cubic kilometers—making it the world's largest lake by both…
Nov 7, 2026
Entire streets and markets opened on a river in winter—which?
Between 1608 and 1814, the Thames froze completely solid during the Little Ice Age, allowing Londoners to hold elaborate Frost Fairs with printing presses,…
Nov 6, 2026
The Parker Brothers bought a game designed to rage against landlords
Elizabeth Magie patented The Landlord's Game in 1904 with two sets of rules—one monopolist, one where all players prospered—to demonstrate Henry George's…
Nov 6, 2026
A $2.5 billion mirror was off by millimeters—what orbited?
The Hubble Space Telescope was launched in 1990 with a mirror ground to the wrong shape by 2.2 micrometers—about one-fiftieth the width of a human…
Nov 5, 2026
Minutes after Eagle touched down, one crew member did this
Buzz Aldrin took communion on the Moon in July 1969, using a chalice and wine provided by his Presbyterian church in Houston. He waited until after Neil…
Nov 5, 2026
The Sun climbs the western sky on this solar system body
Venus rotates so slowly that one Venusian day (243 Earth days) is longer than one Venusian year (225 Earth days), and it spins clockwise when viewed from above…
Nov 4, 2026
You're made of trillions of something—and it isn't you
For decades, scientists claimed bacteria outnumbered human cells ten-to-one, but a 2016 study by researchers at the Weizmann Institute recalculated the ratio…
Nov 4, 2026
Cranes and concrete re-erected a famous monument—which one?
Between 1901 and 1964, more than half of Stonehenge's stones were re-erected, straightened, or reset in concrete to prevent collapse—turning the iconic ruin…