The Curious (and Confusing) History of April Fools’ Day
- BOOM Group
- Apr 1
- 3 min read
April Fools’ Day has been making people laugh—and scratch their heads—for centuries. While no one knows the exact origin, several fascinating theories have emerged over time.

From calendar mix-ups to ancient festivals, the tradition of playful deception has deep historical roots. Let’s explore some of the most widely accepted origins of this day of tricks and pranks.
Calendar Change Confusion – France, 1582
One of the most popular theories traces the holiday back to 16th-century France. In 1582, Pope Gregory XIII introduced the Gregorian calendar, which shifted the start of the new year from the end of March to January 1. Those who didn’t get the memo—or who resisted the change—continued to celebrate the New Year during the last week of March through April 1. These people were often mocked by others, who played pranks on them, calling them “April fools.”
In some cases, pranksters would stick paper fish to their backs and shout "Poisson d’avril!" (April fish!)—a term still used in France today. The fish symbolized gullibility and was meant to be a lighthearted jab.
A Literary Red Herring? – Chaucer’s Canterbury Tales, 1392
Another possible—but debated—origin comes from Geoffrey Chaucer’s The Canterbury Tales. In the “Nun’s Priest’s Tale,” a fox tricks a rooster on “March 32,” which many interpret as April 1. However, scholars now believe this may have been a copyist’s error or misinterpretation. Still, it added fuel to the April Fools’ mystery.
Festival Roots – Ancient Rome, India, and Northern Europe
Some historians believe April Fools' Day evolved from earlier festivals where mischief and mockery were part of springtime rituals:
Hilaria: Celebrated in ancient Rome on March 25, followers of the goddess Cybele wore disguises and mocked fellow citizens and officials.
Holi: In India, the colorful spring festival of Holi includes playful jokes, teasing, and throwing colored powders—celebrating joy, renewal, and letting go of the old.
Feast of Fools: In medieval Europe, this festival allowed for topsy-turvy behaviour—commoners could mock the clergy, and normal rules were temporarily suspended.
These traditions share the spirit of playful inversion and joyful release that April Fools' Day embodies today.
A Global Day of Giggles
By the 18th century, April Fools’ Day was well established in Britain. In Scotland, it evolved into a two-day event starting with “Hunt-the-Gowk Day” (gowk meaning “foolish person”), where people were sent on silly errands. The next day, Tailie Day, focused on pranks involving the backside—think “kick me” signs.
Today, April Fools’ Day is celebrated in many countries around the world—from lighthearted news stories in the UK to elaborate hoaxes in Germany and harmless practical jokes in the US, Canada, and Australia.
Clean and Classic Pranks (That Won’t Get You in Trouble)
If you’re in the mood to celebrate, here are some good-natured, workplace-friendly pranks to consider:
Auto-Correct Antics – Change a coworker’s autocorrect so “yes” becomes “YAAAS QUEEN” and “no” becomes “Negative, Ghost Rider.”
Mug Swap – Swap everyone's coffee mugs with mini teacups and say the office is now “downsizing.”
The Frozen Desktop – Take a screenshot of someone’s desktop, set it as their wallpaper, and hide the actual icons. Watch the confusion unfold.
Inverted Mouse – Put a sticky note over the bottom of someone’s optical mouse with “April Fools!” written on it. Bonus points if you act like IT support.
Reverse Office Setup – Flip everything on a colleague’s desk upside down—monitor, keyboard, stapler—and leave a note: “Now you’re working in Australia.”
Voice-Activated Printer – Put up a sign on the office printer: “Voice-activated due to new tech upgrade. Please speak clearly.” Then watch as people talk to the machine.
Keep It Lighthearted
A good April Fools’ joke is like a good rewards program—it leaves people smiling. Keep your pranks inclusive, harmless, and easy to undo. Avoid anything that causes stress, mess, or genuine confusion.
So go ahead, bring a little joy to the day—your members and coworkers deserve a laugh. And hey, if your prank backfires, you can always say… “Just kidding!”
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