What’s the Deal with Friday the 13th?

I’ll admit it — I’m a bit of a history buff.

I love learning why we say the things we say. Why we hold the traditions we hold. Why certain dates make people pause… even if they don’t quite know why. So when Friday the 13th pops up on the calendar and someone says, “Ooooh, that’s unlucky,” I can’t help but wonder: Where did that actually come from? Because as it turns out — it’s not one dramatic moment in history. It’s layers. And I love a good layered story.

The Trouble with Thirteen

For most of history, the number 12 has symbolized completeness. Twelve months. Twelve zodiac signs. Twelve Olympian gods. Twelve tribes of Israel. Twelve apostles. Twelve feels whole. Balanced. Finished. Thirteen? Thirteen is one step beyond. In ancient Norse mythology, there’s a story about a banquet of 12 gods in Valhalla. The trickster god Loki arrives uninvited as the 13th guest, and chaos follows. One of the most beloved gods, Balder, is killed. Thirteen becomes associated with disruption. In Christian tradition, there were 13 at the Last Supper — Jesus and his 12 apostles — and Judas, the betrayer, is often described as the 13th to arrive. Over centuries, thirteen slowly gathered a reputation for unsettling the order of things. (And if you’ve ever noticed buildings that skip the 13th floor — now you know why.)

Why Friday?

Friday already carried symbolism long before it was paired with thirteen. In Christian tradition, Jesus was crucified on a Friday. Some medieval beliefs even suggested other biblical tragedies occurred on that day. Whether historically accurate or not, the association stuck. Sailors once considered Friday an unlucky day to set sail. So Friday had its own weight. And eventually, the number 13 and Friday met.

The Knights Templar Story

On Friday, October 13, 1307, King Philip IV of France ordered the arrest of hundreds of members of the Knights Templar. Many were tortured and later executed. It sounds dramatic enough to explain everything, right? Here’s the interesting part: historians don’t actually have strong evidence that this event created the superstition. It’s a compelling connection, but the widespread fear of “Friday the 13th” didn’t really show up in writing until centuries later. Sometimes history isn’t one lightning bolt moment. It’s a slow build.

A Surprisingly Modern Fear

The phrase “Friday the 13th” as a widely recognized unlucky day didn’t become popular until the 19th century. And modern pop culture did a lot of heavy lifting — especially with the 1980 horror film Friday the 13th, which cemented the date in our collective imagination. Before that? The superstition existed — but it wasn’t nearly as amplified.

So… Should We Be Worried?

Probably not. Friday the 13th is less about doom and more about how stories travel through generations. It’s about symbolism. Pattern. Cultural memory. And if you’re like me — someone who loves understanding where traditions come from — it’s actually kind of beautiful. Because when you zoom out, it’s not really about luck at all. It’s about how humans make meaning. We notice patterns. We pass down stories. We attach emotion to numbers and days. And over time, those little stories become tradition. I don’t know about you, but I think that’s far more interesting than bad luck.

So today, instead of knocking on wood or avoiding ladders, maybe just enjoy the history behind it. And if you’re in Stillwater and happen to buy or sell a house on a Friday the 13th? I promise — it’s still a good day to make a move. 😉