A cheerful black cat with a four-leaf clover collar sitting beside a calendar page with the 13th circled in gold, a small ladder and a colorful umbrella nearby in bright daylight

aop3debunks: Friday the 13th Is Unlucky? No

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📅 It's Friday the 13th — should you hide?

Welcome to AOP3D Debunks, where today's date gets checked instead of feared. The myth says “Friday the 13th is unlucky — more accidents, more bad luck, stay home.”

It is literally Friday the 13th today, November 13, 2026. So we ran the numbers people have actually collected — and the calendar's scariest date turns out to be remarkably ordinary.

🔍 The breakdown: the data refuses to be spooky

Researchers have tested this claim for decades. The pattern is consistent:

  • Dutch insurance data, 2008: the Dutch Centre for Insurance Statistics found Friday the 13ths had fewer accidents, fires and thefts than ordinary Fridays — about 7,500 traffic accident reports versus 7,800 on an average Friday.
  • Ontario deaths, 2009–2023: statistician Jeffrey Rosenthal and forensic pathologist Jennifer Dmetrichuk checked coroner records across 27 Friday the 13ths — 1,235 deaths, an average of 45.74 per day, slightly below the overall daily average of 46.38.
  • The famous 1993 scare study: a small British Medical Journal paper (Scanlon et al.) reported more transport-accident admissions — 65 versus 45 — but on tiny numbers, in the journal's light-hearted Christmas issue. Larger datasets have not backed it up.
  • The calendar trick: in the 400-year Gregorian cycle there are 4,800 months, and the 13th falls on a Friday 688 times — more often than on any other weekday. You notice it more because it happens more.

Check it yourself: New Atlas on the Ontario Friday the 13th study and Smithsonian Magazine on why we fear the date.

📚 The real story: a superstition younger than the light bulb

Friday and 13 each had an unlucky reputation on their own for centuries — Friday appears as a day of mischance in Chaucer's Canterbury Tales, and 13th-guest stories run from Norse myth to the Last Supper. But combined as one dreaded date? Folklorist Stephen Winick at the Library of Congress found the earliest clear references in French texts from 1834 — the superstition itself is only about 200 years old.

The Knights Templar really were arrested on Friday, October 13, 1307, on the orders of France's King Philip IV. That event is real history. What is missing is any link: nobody connected those arrests to the superstition until the 20th century, and Dan Brown's 2003 novel The Da Vinci Code popularized the connection.

Thomas W. Lawson's 1907 novel Friday, the Thirteenth, about a stock-market panic, helped cement the modern fear. In other words: a 19th-century mashup, a 1907 bestseller, and a 2003 thriller built the “ancient curse” — not medieval dread.

🎉 The verdict: it's a Friday, enjoy it

The verdict: Friday the 13th is not measurably more dangerous than any other Friday. If anything, cautious behavior on the day may make it slightly safer — the Dutch numbers point that way.

The fear itself has a name — paraskavedekatriaphobia — and a real cost: a 2004 National Geographic report estimated hundreds of millions of dollars in lost business each Friday the 13th because people avoid travel and deals. The superstition is expensive; the date is not dangerous.

Did you believe this one? What myth should I bust next?

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