Skip to content

International Skeptics Day is like a party for your brain, where doubting is the guest of honor! This special day lands on October 13th each year, inviting everyone to question the usual and embrace a little healthy skepticism​​​​.

But wait, there’s a twist! This day also gets celebrated on January 13th and sometimes even on the first Friday, the 13th of the year, making it a triple treat for those who love to question everything​​.

The day’s roots stretch way back, touching on historical figures like Pyrrho of Elis and William of Ockham, who taught us the importance of questioning our beliefs and the knowledge we take for granted​​.

The essence of the day is not just about doubting for the sake of it but encouraging a spirit of inquiry and critical thinking. Imagine a world where everyone accepted things at face value. There’s not much room for progress, right?

That’s where this day steps in, urging us to question the established, seek evidence, and maybe even play devil’s advocate at the next group hangout​​​​.

History of International Skeptics Day

Let’s dive into the curious tale of International Skeptics Day, a day that thrives on doubt and celebrates the art of questioning everything.

This special day doesn’t have a fixed address on the calendar. Instead, it pops up on October 13th, January 13th, or the first Friday the 13th of the year – keeping us on our toes and skeptical, perhaps, about when to celebrate​​.

The roots of skepticism go deep, with early whispers heard from figures like Pyrrho of Elis, a Greek who sparked the skepticism flame, and William of Ockham, who wasn’t shy about questioning divine knowledge​​.

The essence of skepticism isn’t about being negative. It’s about keeping an open mind and not just accepting things because someone says so. It’s about looking for evidence, asking questions, and not taking “because I said so” for an answer.

The idea behind International Skeptics Day isn’t just about doubting but engaging in a playful dance with curiosity.

It’s a day to challenge the familiar, to ponder over things we take for granted, and maybe, just maybe, discover something new in the process. It’s about understanding that asking questions is how we grow, learn, and sometimes innovate​​​​.

How did this day come about? Well, it’s shrouded in mystery, which is fitting, don’t you think? Some sources trace it back to ancient clubs of thinkers who loved to debate and question everything under the sun.

Over time, this questioning spirit has been celebrated in various ways, reminding us to keep our minds open and our beliefs on our toes​​.

So whether it’s October, January, or a surprise Friday, International Skeptics Day invites us to pause and ponder, to question the usual, and to revel in the unknown.

It’s a day for the curious, the doubters, and everyone in between to celebrate the joy of questioning and the endless possibilities that come from saying, “But why?”

How to Celebrate International Skeptics Day

Celebrating International Skeptics Day can be a mix of fun, curiosity, and learning. So, how do you celebrate a day dedicated to doubters?

You could host a game night that challenges your brain, dive into some Greek philosophy, or simply question something you’ve always taken for granted. It’s about sparking those neurons into action and maybe, just maybe, discovering something new​​.

So this October 13th, or January 13th, or that quirky Friday the 13th, take a moment to question the norm. Who knows what you might uncover when you start looking a little deeper?

Some Playful Suggestions to Make the Most of the Day

Host a Mystery Movie Marathon: Gather your pals and dive into films that make you question reality. Think mysteries, thrillers, and anything that sparks debate.

Debate Night: Invite friends over for a friendly debate. Pick topics that get people thinking and challenging their own beliefs. No winners, just great conversations.

Skeptics’ Book Club: Start a book club focusing on works by famous skeptics or books that challenge societal norms. Discuss and ponder over coffee or tea.

Philosophy Party: Throw a party where everyone comes as their favorite philosopher or skeptic. Spend the evening discussing their theories and ideas.

Critical Thinking Games: Play games that require logic, reasoning, and critical thinking. It’s a fun way to sharpen those mental skills.

Skeptical Scavenger Hunt: Create a scavenger hunt with clues that require participants to question and think critically to solve.

Write a Skeptical Blog Post: Share your thoughts or research on a topic you’re skeptical about. Encourage others to question and research as well.

“Question Your Beliefs” Day: Dedicate the day to questioning one thing you’ve always taken for granted. Research and see what you discover.

These activities are designed to spark curiosity, encourage questioning, and have a bit of fun. Remember, the goal is to foster a spirit of inquiry and open-mindedness.

Also on ...

View all holidays

National Yorkshire Pudding Day

Golden brown and crispy on the outside, soft and doughy on the inside — the perfect accompaniment to any roast dinner!

National Train Your Brain Day

Do a crossword, study a foreign language, or try your hand at some logic puzzles to keep your brain sharp and improve your mind.

View all holidays

We think you may also like...

Unlucky Day

Sometimes life can feel like a rollercoaster. Embrace the challenges, learn from them, and keep pushing forward towards your goals.

National No Phones at Home Day

Disconnecting from screens, it's like hitting the refresh button for your mind, offering a break from the digital noise of today.

Queer Youth of Faith Day

Embrace the empowering journey of LGBTQ+ young individuals finding strength within their faith community's accepting embrace.



Join the community!

Password requirements

  • At least one capital letter
  • At least one lowercase letter
  • At least one number
  • 8 or more characters

Welcome back!

Log in to get personalized recommendations, follow events and topics you love, and never miss a day again!