Why Do We Knock on Wood?

  • Man knocking on wood
Man knocking on wood
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Author Bess Lovejoy

November 4, 2025

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If you’ve ever said something like, “The car has been working perfectly all year — knock on wood,” and then rapped your knuckles on the nearest wooden surface, you’re in good company. Across much of the English-speaking world, this simple gesture is a charm against misfortune, a way to avoid tempting fate. Americans typically say “knock on wood,” while Britons prefer “touch wood.” Either way, the impulse is the same: to protect good luck, or to keep a hopeful statement from backfiring. But where does this mysterious superstition come from?

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The Tree Spirit Theory

One of the most common explanations for the custom of knocking on wood points to ancient pagan beliefs, particularly among Celtic peoples. Trees — especially oak, ash, and hazel — were once considered sacred, believed to be inhabited by spirits or minor gods. Knocking on a tree trunk might have been a way to rouse these spirits and ask for protection, or to thank them for a stroke of good fortune. Another variation holds that people knocked on trees to chase away evil forces lurking in the wood, or to prevent those spirits from overhearing boasts and punishing the speaker’s hubris.

This idea fits neatly with what we know about ancient tree worship. Sacred groves once dotted the landscape of Europe and other parts of the world, serving as meeting points between humans and the divine. Trees symbolized the structure of the cosmos — roots in the underworld, branches in the heavens — and were thought to house powerful spirits. 

In this light, touching or knocking on wood might seem like a lingering echo of those early spiritual traditions. But there’s a problem with that idea: No direct evidence connects those ancient practices to our modern superstition. Indeed, there’s a silence of more than a thousand years between the Christianization of Europe and the first written reference to touching wood.

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The Curious History of the Piggy Bank

  • Piggy Bank, circa 1950
Piggy Bank, circa 1950
Credit: Harold M. Lambert/ Archive Photos via Getty Images
Author Bess Lovejoy

November 4, 2025

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If you’ve ever dropped spare change into a rotund, smiling, ceramic pig, you may have wondered: Why a pig? The idea of putting coins inside a chubby farm animal may seem whimsical, but the story of how pigs became the symbol of savings reaches back further than you might expect — and the real explanation busts a common myth that’s been circulating since the 1990s.

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Pigs as the Original Savings Account

Before there were coin jars, there were pigs — real ones. In modest households across Europe, pigs were literal stores of value. A piglet bought in spring could be fattened on kitchen scraps and garden waste and, come winter, would provide both food and money. As the Bank of Canada Museum puts it, “A pig — a real one — is an excellent store of value.” In many rural communities, a family’s pig was essentially its bank: a source of meat, trade goods, or emergency cash. This value was collected by slaughtering the pig, just like how you might break a piggy bank to access the coins it stores.

This down-to-earth connection between pigs and thrift helps explain why the animal became a symbol of savings in many cultures. In Germanic folklore, pigs represent luck and plenty. Someone who’s had a stroke of good fortune is said to have Schwein gehabt — literally, “got pig.” Even today, New Year’s Eve in parts of Europe is celebrated with marzipan or chocolate candies known as “lucky pigs.” It was likely German immigrants, with their own Sparschwein (“saving pig”), who carried this fond association to the United States around the start of the 20th century.

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Why Do People Have Such Big Foreheads in Old Paintings?

  • “Portrait of a Lady” painting, circa 1460
“Portrait of a Lady” painting, circa 1460
Credit: Fine Art/ Corbis Historical via Getty Images
Author Tony Dunnell

November 4, 2025

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Europe’s Renaissance period spanned the 14th through 17th centuries, forming a bridge between the Middle Ages and the modern era. It was marked by cultural, artistic, and intellectual developments, as well as a surge of interest in classical scholarship and values. 

During this influential time, the arts flourished, and names such as Leonardo da Vinci, Michelangelo, Raphael, and Botticelli were forever etched into history — along with, as it happens, the surprisingly large foreheads that many Renaissance paintings depicted. 

If you’ve ever examined the portraits from this era, you may have noticed a strange preponderance of spacious brows, especially in depictions of women. Examples abound, whether it be Rogier van der Weyden’s “Portrait of a Lady,” Petrus Christus’ “Portrait of a Young Girl,” or the numerous portraits of aristocratic women painted by Jan van Eyck. For a modern audience, it’s quite a peculiar look. So what exactly was going on here? 

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Beauty Ideals During the Renaissance 

The large foreheads seen in many Renaissance works of art were not simply creative exaggerations or anatomical quirks — they were deliberate reflections of the beauty standards at the time. During the Renaissance, a high, broad forehead was considered a hallmark of feminine beauty, virtue, and intelligence — with the extended brow possibly suggesting a larger brain. The look also gave an almost babylike appearance to people’s faces, perhaps a deliberate effort to capture the era’s values of purity and innocence.

It’s impossible to say precisely when, where, or even why this fashion trend emerged, but it was likely influenced by literature, and particularly poetry. In the 14th century, the Italian poet Petrarch wrote more than 300 sonnets to his beloved, Laura, in which he at times comments on her beautiful forehead (“that sweet face, that hair, that brow”). And in the “General Prologue” of Geoffrey Chaucer’s The Canterbury Tales, written between 1387 and 1400, the author’s description of a nun is very similar to the typical beauty standards of the Renaissance:

Very seemly her pleated wimple was;
Her nose was fine; her eyes were grey as glass;
Her mouth was small and therewith soft and red;
But certainly her forehead was fairly spread;
It was almost a full span broad, I own.

A “wimple” was a cloth head-covering common in the Middle Ages. In this case, it didn’t cover the nun’s forehead, which Chaucer describes in positive terms as being almost a span wide — a span being a unit of length measuring the distance from the tip of the thumb to the tip of the little finger, typically about 9 inches.

Poetic influences such as these may have popularized the notion, at least in aristocratic circles, that a large forehead was a thing of beauty. It was certainly a well-established look during the Renaissance, as documented in Italian writer and poet Agnolo Firenzuola’s 16th-century work On the Beauty of Women. He suggests, “The forehead must be broad, that is, wide, high, fair, and serene. Many people prefer the height, which is measured from the hairline to the edge of the eyebrows and the nose, to be a third of the face.” 

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10 Defunct Fast-Food Restaurants That People Used To Love

  • Shuttered Burger Chef in Cincinnati
Shuttered Burger Chef in Cincinnati
Credit: John Rodriguez/ Alamy Stock Photo
Author Kristina Wright

October 29, 2025

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There’s something timeless about fast food: the neon-lit parking lots, the scent of grilled burgers and deep-fried chicken, the thrill of unwrapping something hot and delicious. The experience is as satisfying today as it was 50 years ago. 

Americans’ love affair with fast food began with White Castle, the first chain fast-food restaurant, founded in 1921 in Wichita, Kansas. Famous for its small “slider” burgers, standardized production, and spotless kitchens, White Castle created the template for fast food as we know it — and it’s still going strong today, with 345 locations across the U.S.

A few decades later, McDonald’s took the concept nationwide, opening its first franchised restaurant in 1955. Today, Mickey D’s operates more than 13,000 U.S. locations and 28,000 internationally, serving billions of burgers, fries, and shakes in more than 100 countries. Along the way, dozens of other fast-food chains emerged, but not all stood the test of time.

From burger empires to roast beef innovators and seafood specialists, here are 10 defunct fast-food restaurants that once ruled the roadsides and mall food courts before disappearing (or nearly so). How many of these vintage chains have you visited?

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Burger Chef

At its peak in the 1970s, Burger Chef was one of America’s largest fast-food chains, boasting more than 1,200 locations across 38 states. Founded in 1958, it earned a loyal following for its flame-broiled burgers, creative advertising, and its Funmeal, a kids’ combo that debuted before McDonald’s introduced the Happy Meal. 

The chain’s reputation took a hit after a tragic incident in 1978 in which four employees disappeared in an unsolved murder. This tragedy, combined with growing competition from Burger King and McDonald’s and some corporate missteps, caused the chain’s decline, and it was eventually sold to Hardee’s in 1982.

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The Biggest Movie the Year You Were Born

  • “Star Wars: Episode IV,” 1977
“Star Wars: Episode IV,” 1977
Credit: Allstar Picture Library Limited/ Alamy Stock Photo
Author Kristina Wright

October 29, 2025

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There’s nothing quite like the magic of movies to capture a moment in time. Every era of American history has its unforgettable films that stayed with us, and looking back at the biggest movies of each decade gives us a chance to remember the stories, stars, and cultural moments that defined generations.

This list spotlights the films that topped the domestic box office in the U.S. and Canada from the 1920s to the 2020s, revealing what audiences lined up to see each year. Because many movies continued to earn through long theatrical runs and later rereleases, each title on the list reflects the top-earning film in the year it was released. And while reliable box-office tracking dates back only to 1977, earlier titles on the list are based on the best available studio records and industry estimates.

So grab your popcorn, settle in, and take a trip through more than a century of movie history to rediscover the biggest film the year you were born.

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1920s

The 1920s cemented Hollywood’s status as the world’s movie capital and transformed film into the decade’s defining form of entertainment. Audiences loved films such as The Ten Commandments and The Big Parade, while matinee idols including Douglas Fairbanks, Rudolph Valentino, and Clara Bow captured the glamour and energy of the Jazz Age. By decade’s end, cinema itself was transformed — 1927’s The Jazz Singer introduced synchronized sound, marking the birth of the “talkie” and forever changing the way audiences experienced the movies.

1920 – Way Down East
1921 – The Four Horsemen of the Apocalypse
1922 – Robin Hood
1923 – The Ten Commandments
1924 – The Sea Hawk
1925 – The Big Parade
1926 – What Price Glory?
1927 – The Jazz Singer
1928 – The Singing Fool
1929 – The Broadway Melody

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Why Are Men’s and Women’s Buttons on Opposite Sides?

  • Classic button-up shirt
Classic button-up shirt
Credit: Angelo DeVal - Fashion and Clothing/ Alamy Stock Photo
Author Tony Dunnell

October 29, 2025

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If you’ve ever tried putting on a shirt that was designed for someone of the opposite gender, you may have noticed something peculiar: The buttons are on the “wrong” side. Men’s shirts button left over right, with buttons running down the right side and buttonholes on the left. Women’s shirts do the opposite, buttoning right over left. 

Before the rise of buttons, garments were typically laced together or fastened with brooches or clasps. Buttoned closures for garments became prevalent in the 13th century with the advent of the reinforced buttonhole — and the two opposing button configurations for men and women have existed for centuries. But why? Here’s a look at some of the theories behind this long-standing design choice. 

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Buttons and Battle 

Historians don’t know for sure why men’s and women’s buttons are on opposite sides, but some of the most common explanations involve military considerations. According to the authors of The Art of Chivalry: European Arms and Armor From the Metropolitan Museum of Art, medieval breastplates were formed of two separate and overlapping plates. To ensure that an enemy’s lance point would not slip between the plates, they were pieced together with the left plate overlapping the right, “since it was standard fighting practice that the left side, protected by the shield, was turned toward the enemy,” the authors point out. For this reason, they argue, “men’s jackets button left to right even to the present day.” 

Others have made similar observations. Due to the predominance of right-handedness (about 90% of humans are right-handed), swords were typically worn on the left side, so they could be drawn with the dominant right hand. According to Paul Keers in A Gentleman’s Wardrobe, men’s shirts and jackets were deliberately designed to button left over right “to avoid catching the pommel of one’s sword in the opening, when drawing it right-handed.” 

From avoiding the piercing blows of lance tips to smoothly drawing weapons, there is some logic to the soldierly need for buttoning left over right. But there’s no definitive evidence to support these military theories — and while they might explain the need for buttons on the right, they don’t supply any answers as to why women’s buttons are on the opposite side.   

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What Did Medieval Knights Actually Do?

  • Two knights dueling, 15th century
Two knights dueling, 15th century
Credit: Universal History Archive/ Universal Images Group via Getty Images
Author Timothy Ott

October 29, 2025

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Medieval knights, those armed and armored men (or in some rare cases, women) on horseback, thrived throughout Europe in the days before kings depended on standing armies to enforce their sovereignty. Renowned for their martial prowess and romanticized for their adherence to the moral code of chivalry, these warriors have been celebrated in fiction and the public imagination since the days when they were still an active fighting force.

And yet, like the modern-day movie star or professional athlete, these extolled individuals lived a life that was less glamorous than perception would have us believe. While there were indeed times when a knight would graciously woo a fair maiden or toast to a resounding battlefield victory with fellow soldiers, their hours were often occupied by more mundane activities. Here’s a taste of what everyday life was like for knights in the Middle Ages.

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Military Service

As part of the medieval feudal system, knights often received a plot of land (known as a fief) from a king or another powerful noble in exchange for a period of military service, typically lasting 40 days out of a year. Such service might have required the knight to ride into a pitched battle, where they would attack enemies with a broadsword, lance, or mace. A knight might also have taken part in the siege of a castle or fortified town, or in a raid intended to destroy enemy villages and crops.

Despite the glory that could be attained from battlefield exploits, some knights ducked this service by paying a fee known as scutage. This arrangement worked out well for both sides; a busy knight could avoid having to leave behind their family and affairs, while their lord could use the money to hire mercenaries who were more enthusiastic about fighting.

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Along with armed protection, a knight was often required to provide civil and administrative duties to their lord. As explained in A Chronicle History of Knights, this may have entailed supplying political or military advice, witnessing the signing of documents, or serving as an ambassador.

A knight might also have served as a judge in a lord’s court or handled judicial responsibilities themselves by mediating disputes between the serfs under their watch and meting out punishment.

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5 Inventions That Failed Spectacularly

  • Baby cage, 1936
Baby cage, 1936
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Author Paul Chang

October 29, 2025

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From the wheel to the light bulb, innovation has played a central role in the story of human civilization. But history’s inventors also left behind a trail of misfires, failures, and downright disasters. Here are five ideas that promised to make life better, safer, or more efficient, but turned out to be spectacular flops.

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Baby Cages

In the early 20th century, crowded cities such as New York and London grappled with widespread tuberculosis. At the time, one common treatment was fresh air, prescribed by figures including the influential pediatrician Luther Emmett Holt. In his 1894 book, The Care and Feeding of Children, Holt wrote that babies exposed to fresh air enjoyed better appetites, brighter cheeks, and improved health.

Enter the baby cage — a wire enclosure fastened to an open window, which allowed apartment dwellers to suspend infants several stories above city streets to “air them out.” The first U.S. patent was granted to Emma Read of Spokane, Washington, in 1922, though the idea had circulated earlier. The baby cage briefly caught on, notably among members of the Chelsea Baby Club in London. Even Eleanor Roosevelt used one for her infant daughter Anna, until a horrified neighbor threatened to call the New York Society for the Prevention of Cruelty to Children. Baby cages declined in the second half of the 20th century, largely due to safety concerns.

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Popular Halloween Costumes Throughout the 20th Century

  • Men in costume, circa 1915
Men in costume, circa 1915
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Author Kristina Wright

October 20, 2025

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For many of us, Halloween stirs memories of crisp autumn nights, glowing jack-o’-lanterns, and the childlike joy of heading out in disguise to go trick-or-treating. Each year, the Halloween costumes on display offered a glimpse into what captured people’s attention at the time — whether it was a favorite movie star, a superhero, or a good old-fashioned ghost or witch. Store-bought masks and homemade outfits reflected the mood of each decade, from the cowboys of the silver screen to the astronauts of the space race.

Looking back at the 20th century through its Halloween costumes is like flipping through a scrapbook of popular culture. Each era had its trends, icons, and traditions. Here’s a look at the popular costumes that defined a century of spooky celebrations.

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1900s

At the turn of the century, Halloween in the U.S. remained closely tied to older folk customs, many brought by Irish and Scottish immigrants. Costumes were homemade, crafted from repurposed clothing, painted masks, or simple linen and gauze. Popular getups of the decade included ghosts, vagabonds, and witches, and many disguises reflected the folkloric goal of confusing or warding off spirits, blending masquerade with superstition. 

Halloween “guising” involved putting on costumes and singing songs to earn treats, but masquerade parties were more common than door-to-door trick-or-treating. Some so-called “Halloween” images from that era may even represent Thanksgiving maskers, since the tradition of seasonal masking overlapped between holidays in some parts of the country.

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6 Forgotten Collectibles From the 1950s

  • Boy with Robert the Robot
Boy with Robert the Robot
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Author Timothy Ott

October 17, 2025

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Some famous toys from the 1950s, such as the Frisbee and Mr. Potato Head, became so embedded in popular culture that they remain in regular use or at least are recognized by kids even today. But not every popular collectible from that period survived for successive generations to incorporate into their playtimes. Here are six treasured toys from the 1950s that inspire warm feelings from those who remember the fun.

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Robert the Robot

Thanks in part to the success of science fiction books such as Isaac Asimov’s I, Robot (1950) and films such as The Day the Earth Stood Still (1951), hordes of American children grew up playing with imported tin toy robots in the early 1950s. However, the market was jolted in 1954 with the Ideal Toy Company’s Robert the Robot, the first plastic toy robot made in the United States. 

Standing 14 inches tall, Robert moved on wheels by way of a cable-connected, hand-cranked remote control, while winding another crank on his back prompted him to blurt out, “I am Robert Robot, mechanical man. Drive me and steer me, wherever you can.” Robert proved popular enough to inspire two songs from the Cricket Records music label and even appeared in the 1956 film There’s Always Tomorrow, although he fell out of favor with the introduction of more advanced toy robots such as Mr. Machine the following decade.

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