World Superstitions and Lucky/Unlucky Symbols

Discover 17 fascinating superstitions and jinxes from around the world, where they come from, and why the same sign can mean opposite things in different cultures.

Four-Leaf Clover

Region: Ireland/the West. Clovers normally grow with three leaves, so a rare four-leaf specimen has long been considered a symbol of good luck because of its rarity. Irish and Celtic tradition is often cited, and the shamrock itself (a three-leaf clover) is a symbol of Ireland. Finding one is a matter of chance, and by some estimates only about one in several thousand clovers has four leaves, which is why it is a good-luck charm.

Horseshoe

Region: Europe. Hanging a horseshoe above a door or entrance has long been believed to bring good luck and ward off misfortune, thought to stem from the belief that the strong iron repels evil. Whether the open end should point up (to hold the luck in) or down (to pour luck on those below) is a long-running argument, and both customs exist.

Ladybug

Region: Europe. In European folk belief, the ladybug has long been associated with the Virgin Mary (the name 'ladybird' is often said to refer to 'Our Lady') and considered a bringer of good luck. Some traditions hold that deliberately shooing one away invites bad luck, while one landing on you is a good sign. It is also a friend to gardeners because it eats aphids.

The Red Thread of Fate

Region: China/East Asia. Rooted in the legend of the 'Old Man Under the Moon', who ties an invisible red thread between the ankles of two destined people. The thread may stretch or tangle, but never break. Red thread or knots remain a symbol of fate and good fortune in several East Asian cultures today, and red is widely used for weddings and New Year gifts.

Black Cats

Region: United States/parts of Europe. Originates from medieval Europe, where black cats were associated with witches and seen as an ill omen. Interpretations vary by country, though: in the UK and Japan, black cats are instead often seen as a symbol of good luck, and a black cat crossing your path may be welcomed. It is a clear example of how identical signs can carry opposite meanings.

Broken Mirrors

Region: The West (often traced to ancient Rome). Ancient Romans are commonly said to have believed mirrors reflected a person's soul, so breaking one was thought to damage the soul, taking seven years to heal because the Romans viewed life as renewing in seven-year cycles. The Western superstition that breaking a mirror brings seven years of bad luck is usually traced to this belief, though the exact origin is uncertain.

The Number 13

Region: The West. Widely considered an unlucky number in Western culture. Often cited origins include there being 13 people at the Last Supper (Jesus and his 12 disciples), and Norse mythology's Loki being the uninvited 13th guest at a feast in Valhalla. The fear is known as triskaidekaphobia. Some buildings skip the 13th floor in their numbering, and many hotels and airlines skip the number for rooms or rows.

Friday the 13th

Region: The West. Friday is already considered an unlucky day in some Christian traditions, because of the crucifixion on a Friday, and combining it with 13 produced a double-unlucky date. Whether the belief is old or relatively modern is debated, but it is firmly established in English-speaking countries. In Spain and Greece, Tuesday the 13th is the feared date, while in Italy the number 17 has a similar reputation.

The Number 4

Region: Korea/China/Japan. In cultures using Chinese characters, the number 4 is considered unlucky because its pronunciation resembles or matches the word for 'death'. Some buildings label the fourth floor as 'F' or otherwise avoid the number, and gifts in sets of four are avoided. This is a good example of a superstition that is based on language (a homophone) rather than on any older legend.

The Number 8

Region: China and other Chinese-speaking communities. The word for eight sounds like the word for prosper or get rich in Chinese (especially Cantonese), so 8 is considered very lucky. Phone numbers, license plates and street addresses with many eights can be sold at high prices, and the 2008 Beijing Olympics opened on 8/8/08 at 8:08 p.m. It shows that wordplay can make a number lucky just as it makes 4 unlucky.

Opening an Umbrella Indoors

Region: United Kingdom/the West. A Western superstition holding that opening an umbrella indoors brings bad luck. Some explanations point to the real risk that an umbrella's sharp ribs could injure someone or damage belongings in an enclosed space, while others link it to older beliefs about umbrellas as protection from the sun and the spirits who give it. The exact origin is not clear.

Spilling Salt

Region: The West. Spilling salt at the table is considered bad luck in the West, leading to the custom of throwing a pinch of the spilled salt over the left shoulder to ward off misfortune. The idea is often tied to how precious salt once was, and to the Last Supper painting by Leonardo da Vinci, in which Judas has knocked over a salt cellar, though the belief is older than the painting.

Knocking on Wood

Region: English-speaking countries and elsewhere. After saying something hopeful, such as 'I haven't been sick all year', people knock on a wooden surface to avoid tempting fate. Common explanations involve old beliefs that spirits live in trees, but the exact origin is not documented. Similar customs exist in other languages, for example touching wood in French and Spanish or saying 'toi toi toi' in German.

The Evil Eye (Nazar)

Region: Turkey, Greece, the Middle East, South Asia and the Mediterranean. The belief that a hostile or envious glance can cause harm is very old and widespread. Protective charms include the blue glass eye (nazar boncugu) in Turkey and the mati in Greece, and the hamsa hand in the Middle East and North Africa. People hang them near doors, on babies' clothes and in cars, and often say a blessing after complimenting a child.

Sticking Chopsticks Upright in Rice

Region: Korea/China/Japan. Standing chopsticks vertically in a bowl of rice evokes incense offered to the deceased at ancestral rites or funerals, making it a widely avoided practice at the table across all three countries. In Japan, passing food from chopsticks to chopsticks is also avoided because it recalls a funeral custom of passing bones after cremation.

Stepping on a Threshold

Region: South Korea. In traditional Korean custom, stepping on the threshold between rooms is believed to let a household's good fortune escape or bring bad luck, so stepping over rather than on the threshold has long been considered proper etiquette. Similar rules about thresholds appear in other cultures, for example the Russian custom of not shaking hands across a threshold.

Why Do Superstitions Differ So Much by Country?

Superstitions often stem less from scientific basis and more from a society's history, religion, and linguistic quirks. The same object can be interpreted in completely opposite ways across cultures. The black cat, seen as unlucky in the US but lucky in the UK, is a prime example. Number superstitions in East Asia are almost always about how a number sounds rather than what it is, while many Western superstitions come from religious stories or old folk practices. This is why learning the local language often explains a superstition immediately.

How superstitions spread and survive

Superstitions are passed on through family, stories, school playgrounds and now social media. Many survive because they are cheap to follow and costly to ignore: knocking on wood takes a second, and if nothing bad happens, the ritual seems to have worked. Researchers who study the psychology of belief note that people turn to such rituals most often when they feel a lack of control, such as before exams, sports matches or travel. Athletes and performers are well-known examples.

Travelling and etiquette: when superstitions matter

Superstitions can matter in practical ways. A gift of four items, white flowers or a clock may be unwelcome in some East Asian settings, and chopsticks standing in a rice bowl will upset hosts in many places. Building floors and room numbers may skip 4 or 13. You do not have to believe in these things, but knowing about them is a small courtesy that avoids unintentional offense, especially during business visits or when staying with a host family.

Interesting Even Without Believing Them

Even without actually believing in a superstition, learning the history and cultural background behind it can be a fascinating journey in itself. Knowing local superstitions in advance when traveling abroad can also deepen your understanding of the culture. Origins listed here are the most commonly cited explanations, and many have multiple competing theories.

Frequently Asked Questions

Do superstitions have any scientific basis?

Most superstitions aren't scientifically verified facts; they're cultural beliefs passed down over a long time. That said, their origins often reflect the lifestyles or historical events of the people who first held them, and a few, such as avoiding walking under a ladder, began as sensible safety advice.

Does the same superstition get interpreted differently across countries?

Yes. The black cat is a classic example, seen as a symbol of bad luck or good luck depending entirely on which culture you ask. Numbers are another: 4 is avoided in East Asia, 13 in much of the West, 17 in Italy, and 8 is sought in Chinese-speaking communities.

Why are number superstitions in Asia based on sounds?

Chinese, Korean and Japanese have many words that sound alike but mean different things. Because 'four' sounds like 'death' and 'eight' sounds like 'prosper' in Chinese, those numbers took on meanings through wordplay. Such homophone-based beliefs are among the easiest superstitions to trace.

Is it rude to ignore a superstition when visiting another country?

It is not rude to hold your own beliefs, but following local customs where it is easy to do so, such as not leaving chopsticks upright in rice, is a courtesy. Hosts generally appreciate the effort, and most will forgive honest mistakes.

Why do people follow superstitions they do not believe in?

Many people follow them partly out of habit and partly because the cost is tiny. Psychologists note that small rituals can also reduce anxiety and give a feeling of control before uncertain events, even when people know they have no real effect.