10 facts crushing the idea that Christmas cards are a snooze‑fest. When you think of yuletide greetings you probably picture festive wreaths and family smiles, not covert spy meetings, police sting operations or cutting‑edge science. Yet the tradition hides a surprisingly odd side‑show: astronomers calling out lunar goofs, health gurus slamming Santa’s waistline, and even a secret Bletchley Park photo tucked inside a humble card. From gun‑wielding politicians to microscopic snowmen, these ten tidbits prove the humble envelope still packs a punch.
10 The Moon Is Nearly Always Wrong
Sharp‑eyed sky‑watchers have a habit of pointing out when something looks off, and this time they turned their telescopes toward Christmas cards rather than the heavens. By flipping through a handful of seasonal greetings, they discovered that many illustrations featuring a night sky displayed moons that simply didn’t belong there. From glossy holiday books to wrapping paper, the researchers noted a recurring pattern: cartoon moons were frequently drawn in the wrong phase or positioned at impossible times.
The whole investigation sprang from a single observation by Dutch astronomer Peter Barthel, who spotted a waning crescent moon on a 2010 UNICEF card and on a popular Advent e‑calendar. In both cases the moon was shown low in the sky during an early‑morning caroling scene—an astronomical impossibility, as a waning crescent would not rise until well after sunrise. Barthel widened his scope to include cards from the United States and the Netherlands, two nations that heavily shape the global image of Christmas.
His analysis revealed that up to 65 % of the moons in those markets were simply wrong. While the errors may seem harmless, Barthel argues that illustrators should respect basic astronomy and depict the correct lunar phase. After all, a festive card is often the first visual cue a child receives about the night sky, and it deserves a little scientific courtesy.
9 The First Card
The printed Christmas card industry is barely a century and a half old. The very first card appeared in 1843, hand‑coloured and sold for a shilling. Only a thousand copies were produced that inaugural year, and merely twenty‑one have survived to the present day. Designed by Henry Cole and illustrated by John Callcott Horsley, the card shows a merry family gathered around a table of wine, bearing the greeting “A merry Christmas and a happy new year to you.”
One of those rare originals recently toured the Charles Dickens Museum in London, where it was discovered that the card had originally been purchased by a son and sent to a married couple as a holiday present. The year 1843 also saw Charles Dickens release his timeless novella A Christmas Carol, a story that would become a cornerstone of the holiday season in countless adaptations. Neither Cole nor Dickens foresaw that they were simultaneously launching two cultural phenomena that would forever shape how we celebrate December.
The coincidence of the first commercial card and Dickens’s classic underscored a pivotal moment in Victorian culture. While the card industry blossomed into a global market, Dickens’s tale cemented the moral and emotional framework of modern Christmas, proving that a simple piece of paper could wield as much influence as a bestselling novel.
8 The JFK Cards
In the autumn of 1963, President John F. Kennedy and First Lady Jacqueline were gearing up for a festive season that would never happen. Their plans included a Thanksgiving visit to the President’s family in Massachusetts followed by a Christmas retreat in Palm Beach, Florida. Before hitting the campaign trail for a series of five Midwest stops, the Kennedys received a custom‑printed Hallmark set of Christmas cards, each bearing a photograph of an 18th‑century Neapolitan nativity scene from the White House’s East Room.
The inside of the cards featured an embossed seal and a warm holiday greeting, ready to be mailed to friends, political allies, and family members. The Kennedys managed to sign roughly seventy‑five of the cards before the tragic assassination in Dallas halted their travel and the mailing process. As a result, the entire batch remained unsent, turning the cards into a rare piece of presidential memorabilia.
Today one of those unmailed cards resides in the Smithsonian’s National Museum of American History, offering a tangible glimpse of a moment frozen in time. The cards serve as a poignant reminder that even the most carefully crafted holiday gestures can be upended by history’s sudden twists.
7 The Terrifying Fiore Family
When the Fiore family posed for their 2015 Christmas card, they certainly didn’t pick a traditional jolly backdrop. Four generations gathered together, each brandishing a weapon that would make even Santa think twice about a midnight visit. At the centre stood Nevada Republican Assemblywoman Michele Fiore, flanked by her five‑year‑old grandson Jake, who held a real Walther P22 as if it were a toy.
Beside them, Fiore’s mother clutched an Extar EXP556, while other relatives displayed a variety of firearms strapped to their bodies. The resulting image sparked a firestorm, with critics lambasting the family for glorifying guns in a holiday setting. Fiore, however, seemed unfazed, telling Fox News that giving and receiving firearms as Christmas gifts was perfectly reasonable—a stance consistent with her prior controversial statements about shooting Syrian refugees and advocating for campus‑wide gun carriage.
The card’s shock value turned it into a viral sensation, cementing the Fiore family’s place in the annals of “what not to do” on a holiday greeting. It also sparked a broader conversation about the appropriateness of weaponry in festive media, especially when the audience includes impressionable children.
6 A Unique Fossil Swap
When you think of Christmas cards, you probably picture glitter, snowflakes, and family portraits—not tiny marine fossils. Yet two early‑20th‑century naturalists, Edward Heron‑Allen and Arthur Earland, turned their shared love of foraminifera into an annual holiday tradition. Both worked at London’s Natural History Museum, cataloguing and describing ancient single‑celled organisms that live in ocean sediments.
Each year, the pair exchanged miniature “cards” fashioned from surplus foraminifera slides, each slide densely packed with a variety of fossil specimens. These fossil‑laden greetings were not only scientifically impressive but also deeply personal, reflecting years of collaboration and friendly rivalry. Over time, however, the relationship soured: Heron‑Allen, a distinguished lawyer and scholar, received numerous honors, while Earland, a post‑office worker, remained largely unrecognised. The disparity showed up in the cards themselves, which grew progressively less elaborate before the exchange finally ceased.
Today, those fragile slides serve as a unique reminder that scientific camaraderie can inspire the most unconventional holiday gestures. Their story underscores how even the tiniest of specimens can carry a heartfelt message across the festive season.
5 They Will Survive The Digital Age
Many skeptics claim that the rise of free e‑cards has doomed the traditional paper greeting. After all, sending a digital postcard takes seconds, while mailing a physical card involves envelopes, stamps, and a trip to the post office—behaviour that feels almost prehistoric. Yet the market tells a different story: while cheap, mass‑produced cards have seen a decline, high‑end, handcrafted pieces are flourishing.
A 2016 survey revealed that 105 million Christmas cards were sold in the United Kingdom alone, generating roughly £184 million in revenue. Consumers are increasingly gravitating toward bespoke, artist‑crafted designs, many of which command prices up to £18.95 each. The premium price tag adds a sense of exclusivity, turning a simple greeting into a cherished, personal keepsake that digital alternatives simply cannot replicate.
In short, the tactile delight of ink on paper, the anticipation of opening an envelope, and the personal touch of a handwritten note ensure that Christmas cards remain a beloved tradition, even in an age dominated by pixels and push‑button greetings.
4 Santa’s Image Upsets Health Experts
When the jolly old man in red entered the spotlight of a 2009 health summit, he quickly became the target of a surprisingly serious critique. Australian physician Dr Nathan Grills argued that Santa Claus, as commonly depicted on Christmas cards, promotes an unhealthy lifestyle for impressionable children. The classic image shows a rotund, pipe‑smoking, sleigh‑driving figure who happily consumes copious amounts of brandy and candy, sending the wrong message about diet, weight, and safe driving.
Grills highlighted several concerns: Santa’s obesity contradicts modern nutritional advice; his pipe presents a tacit endorsement of tobacco use; and the tradition of leaving brandy for him implies a permissive attitude toward alcohol consumption. He even calculated that, given billions of households, the amount of brandy offered to Santa would result in a blood alcohol concentration high enough to set a breathalyzer ablaze.
While Grills suggested that Santa could be re‑imagined as a fit, treadmill‑running figure to promote healthier habits, the public remains largely attached to the classic portrayal. Nonetheless, the debate sparked an ongoing conversation about the messages embedded in holiday iconography and their impact on children’s health perceptions.
3 Police Warn Shoplifters With Cards
Most of us keep a tidy address book for sending festive greetings, but the police force in Northern Ireland took a very different approach. In 2016, the Royal Ulster Constabulary launched “Operation Nutmeg,” a clever scheme that used Christmas cards as a covert warning to known shoplifters. The department compiled a list of repeat offenders and mailed them holiday‑themed cards that, instead of warm wishes, carried a stern reminder that law enforcement was watching their every move.
The initiative was born out of a noticeable spike in retail thefts during the holiday season, as shoppers and thieves alike were drawn to the bustling stores. By sending a personalized card to each offender, the police hoped to deter future crimes through a subtle blend of festive cheer and firm warning. Recipients received a traditional‑looking envelope, only to find inside a clear message: the police were aware of their activities and would act accordingly.
Operation Nutmeg proved surprisingly effective, with a measurable drop in shoplifting incidents in the months following the campaign. The creative use of a holiday card demonstrated how a simple piece of paper could become a powerful tool in modern policing.
2 A Microscopic Holiday Message
Imagine a Christmas card so tiny that you need a microscope just to read the greeting. In 2017, Britain’s National Physical Laboratory (NPL) achieved exactly that feat, engineering a card just 15 microns wide and 20 microns tall—smaller than a human hair. The minuscule masterpiece displays a cheerful snowman and the words “Season’s Greetings,” and when examined under magnification, opens to reveal a tiny “From NPL” message inside.
To create the card, researchers selected a silicon‑nitride membrane and coated it with an ultra‑thin layer of platinum. Using a focused ion beam, they etched the design and text at a scale of a few millionths of a metre. While the result looks like a novelty, the process served a far more practical purpose: it tested and refined techniques for manipulating materials at the micron level, a capability that underpins advances in electronics, medicine, and nanotechnology.
The project broke a world record for the smallest functional greeting card and demonstrated that even the most festive of traditions can inspire groundbreaking scientific research. It’s a reminder that the holiday spirit can be both heartfelt and hyper‑precise.
1 The Only Photo Of A Secret Meeting
In the summer of 1938, a seemingly innocuous gathering took place at a country manor in England. While onlookers assumed it was a festive party for the staff at Bletchley Park, the guests were in fact a cadre of top‑secret codebreakers from MI6 and the Government Code and Cypher School. Their mission: to crack Italian naval ciphers, a task that would later prove pivotal in shortening World War II by an estimated two years.
Because the work was classified, no photographs of the meeting were ever taken—until a Christmas card surfaced decades later. The daughter of one of the female codebreakers discovered the card among her mother’s belongings. The plain‑blue card featured a modest photograph of the Bletchley Park lawn, with a simple greeting reading, “Wishing you a very happy Christmas & New Year.” It was sent by Lady Evelyn Sinclair, sister of the MI6 chief, as a discreet thank‑you to fellow cryptanalyst Joan Wingfield.
Today, that single card provides a rare visual record of a covert wartime operation, reminding us that even the most secretive moments can be captured in the most ordinary of holiday traditions.
These ten astonishing facts crush the notion that Christmas cards are boring, showcasing everything from scientific slip‑ups to covert spy gatherings. So the next time you pick up a card, remember: you might be holding a piece of history, a tiny marvel of nanotech, or even a warning from the police. Happy holidays, and may your mailbox be as fascinating as the stories inside.