Money is a shared story we all agree to believe — and the history of that story is much weirder than your wallet suggests. Fourteen questions on strange currencies, secret design decisions, and numbers with too many zeros. Answer before each reveal and keep score; the exchange rate on bragging rights remains excellent.

Round One: Strange Currencies

Start big. On the Pacific island of Yap, traditional money took what form? Giant stone discs called rai — some taller than a person and far too heavy to move. So how did you spend one? You didn't: the stones stayed put and everyone simply agreed the ownership had changed. In the most famous case, a rai sank to the bottom of the sea in transit — and the island kept counting it as wealth anyway, because everyone knew whose it was. Yap had essentially invented the shared ledger centuries before banks digitized the same idea.

From stone to livestock: cattle were among humanity's oldest forms of wealth, and one English word still carries the receipt. "Pecuniary," meaning related to money, comes from which Latin word? Pecus — cattle. Every time a lawyer says "pecuniary damages," they are, etymologically, talking cows. You'll also hear that "salary" comes from Roman soldiers being paid in salt — a lovely story, but the evidence is thin, and historians treat it as folklore. Deploy it with an asterisk.

Now the paper question. Which civilization used paper money first? China — merchants' promissory notes evolved into true government-issued paper under the Song dynasty, roughly seven centuries before Europe caught on. When Marco Polo described paper functioning as money, European readers found it barely believable.

Round Two: The Fine Print on Your Change

Here's the one you've been holding your whole life without asking. Why do quarters and dimes have ridged edges? Because they used to be silver. Ridges — "reeding" — made it obvious if someone had shaved slivers of precious metal off the rim, a scam called clipping that plagued coinage for centuries. Isaac Newton, in his second career running the Royal Mint, waged war on clippers and counterfeiters and helped make machined edges standard. The silver left our coins decades ago; the anti-theft ridges never did. Notice what's missing, too: pennies and nickels have smooth edges, because they never contained anything worth shaving.

Speaking of pennies — does it cost more or less than one cent to make a penny? More. Roughly three cents per penny in recent years, meaning the U.S. Mint has long lost money manufacturing money. And what is an American bill actually made of? Not paper — a blend of about 75 percent cotton and 25 percent linen, which is why a dollar survives the washing machine and your newspaper doesn't. Even so, a hard-working $1 bill only lasts around six or seven years in circulation.

One machine-age closer: when and where did the world's first ATM appear? London — a Barclays branch in Enfield, 1967. The cash machine is older than the handheld calculator it resembles.

One free bonus card before the big-number round:

Who is on the $100 bill — and what office did he hold as president?

Benjamin Franklin — none. He's one of the two non-presidents on current U.S. bills, along with Alexander Hamilton on the $10.

Round Three: Numbers With Too Many Zeros

What is the largest U.S. bill ever printed? Careful — this is a two-part trap. The largest to circulate publicly was the $10,000 bill, but the true record is the $100,000 gold certificate of 1934, bearing Woodrow Wilson's portrait and used only for transfers between Federal Reserve banks. No civilian ever spent one. Everything above $100 was retired from circulation in 1969.

Now the worst inflation ever recorded. Which country's currency collapsed so completely in 1946 that prices were doubling roughly every 15 hours? Hungary, where the pengő failed so spectacularly that the government printed a 100 quintillion pengő note — a one followed by twenty zeros, the largest denomination ever issued. Zimbabwe's famous 100 trillion dollar note of 2009 was, by comparison, restrained — and in a fitting punchline, those notes are now collector's items trading for far more than they were ever worth as money.

Last question, for the whole pot. What's the most anyone has paid for a single American banknote? An 1890 $1,000 Treasury note nicknamed the "Grand Watermelon" — for the fat green zeros on its back — sold at auction in 2014 for about $3.3 million, long the benchmark price in the hobby. A thousand-dollar bill worth three thousand times its face value: proof that money's value really is just a story, and stories appreciate.

Count your score. If you got the sunken stone, Newton's ridges, and Hungary's twenty zeros, you can consider your trivia account fully funded.