All Object Lessons
Everyday Objects

The Safety Pin: A 3,000-Year-Old Idea, Reinvented in Three Hours

⏱ 45 minutes 🎓 Primary & Secondary 📚 history, art, ethics, citizenship, language
Core question How did one tiny object — designed to settle a $15 debt — become both an everyday tool used billions of times and a global symbol of political solidarity, while quietly continuing a tradition over 3,000 years older than its inventor knew?
Modern stainless steel safety pins. The basic design — spring loop, sharp point, protective cap — was patented by Walter Hunt in 1849. But pins of essentially the same design (called fibulae) were used in the ancient Mediterranean for over 3,000 years before Hunt 'invented' the safety pin. Photo: Chenfgmaiho KWAN / Wikimedia Commons / CC BY-SA 4.0
Introduction

In 1849, in New York City, an American mechanic named Walter Hunt owed his friend $15 — a small but real debt. Hunt was a prolific inventor but a poor businessman; he had spent most of his life inventing things and selling the patents for almost nothing. He was looking for a quick way to settle the $15 debt. He sat at his desk, picked up a piece of brass wire about 8 inches long, and began twisting it. He was thinking about pins — simple straight pins were everywhere in 19th-century life, used for fastening clothing, but they were dangerous. They jabbed people. They came loose. Babies got pricked. Hunt twisted the wire into a coil in the middle, bent it back on itself, sharpened one end into a point, and made a small cap on the other end that covered the point when the wire was closed. The coil acted as a spring; the cap protected the point. A single piece of bent wire, with all the safety designed into it. He had it in three hours. Hunt patented his invention on 10 April 1849. He immediately sold the patent for $400 to a man named W.R. Grace and Company. He used $15 to pay his debt and kept $385 for himself — a substantial sum for him, though tiny compared to what the patent would later be worth. Hunt died in 1859 still relatively poor, with his lockstitch sewing machine (patented in 1846 and abandoned by him) about to be made into a fortune by Isaac Singer. The safety pin company that bought his patent went on to make millions. Hunt was inducted into the National Inventors Hall of Fame only posthumously in 2006. But there is a deeper history here. Hunt did not really invent the safety pin. The basic idea — a spring-loaded pin with a protective cap — had been used for at least 3,400 years before him. The Mycenaean Greeks of the Aegean (about 1400 BCE) made gold and bronze fibulae with essentially the same mechanism: a single piece of metal bent into a spring loop, with a sharp pin at one end and a catch at the other. Etruscan, Roman, Celtic, and Anglo-Saxon fibulae from across the ancient and medieval Mediterranean and Europe all use the same principle. They were used to fasten clothing — cloaks, tunics, robes — for over 2,000 years. Then, around 800 CE, the fibula tradition slowly faded. By the medieval period, buttons and other fasteners had largely replaced them. The principle was forgotten. Hunt's 1849 'invention' was therefore a reinvention. The genius was real, but it was the genius of rediscovery. Today, the safety pin lives in two worlds. It is a working tool used billions of times — to pin nappies, hem skirts, hold bandages, and fix everything in between. It is also a political symbol. In the late 1970s, punk musicians wore safety pins as fashion — Vivienne Westwood and the Sex Pistols famously through clothes and ears. After the 2016 Brexit referendum and the 2016 US election, people in the UK and US began wearing safety pins on their clothes as a quiet sign of solidarity with immigrants and minorities feeling threatened. The pin became a small, cheap, visible badge: 'I am a safe person.' The campaign was criticised by some as 'slacktivism' and praised by others as a real signal. Both reactions are real. This lesson asks how the safety pin became both a piece of everyday engineering and a political object, and what its story teaches us about invention, continuity, and meaning.

The object
Origin
The modern safety pin was patented by Walter Hunt in New York in 1849. But the basic design has much older roots — the fibula, a brooch-and-pin combination with the same essential principle, was used in the ancient Mediterranean from at least 1400 BCE and across Europe for over 3,000 years.
Period
Modern safety pins from 1849 to today — about 175 years. The earlier fibula tradition from about 1400 BCE to about 800 CE — about 2,200 years. The basic design is therefore over 3,400 years old, with a gap of about 1,000 years between the end of the fibula tradition and Hunt's 1849 reinvention.
Made of
Modern safety pins are made of stainless steel, sometimes coated for colour. Older pins were made of brass, iron, gold, silver, copper, or bronze (especially the ancient fibulae, some of which are masterpieces of metalwork). The shape is a single piece of wire or metal bent into a spring loop with a sharp point at one end and a protective cap at the other.
Size
Modern safety pins range from about 2 cm long (size 0, for delicate fabric) to over 10 cm long (sizes 4 and larger, for blanket and kilt pins). Most household pins are about 3 to 5 cm. Light enough to wear for hours; small enough to hold in the hand.
Number of objects
Billions in active use worldwide. Modern factories can produce over 3 million safety pins per day each. The total number ever made probably exceeds 100 billion. Many sit in drawers, jewellery boxes, and forgotten pockets across the world.
Where it is now
In homes, hospitals, theatres, dressmakers' studios, costume cupboards, and clothing shops worldwide. Specifically political uses include the punk rock scene from the 1970s onwards, post-Brexit and post-2016-US-election solidarity displays, and various protest movements. Major historical fibulae are in museums including the British Museum, the Metropolitan Museum of Art, the National Archaeological Museum of Athens, and many others.
Before you teach this — reflect

Questions for you

  1. The safety pin has been a real political symbol in different movements. How will you teach this honestly without taking political sides?
  2. Walter Hunt's story includes patent sales for very little money — partly because he was concerned about workers losing jobs. How will you handle the ethics of his choices?
  3. The fibula tradition is much older than the modern safety pin. How will you handle the long continuity without making it seem mysterious?

Common student difficulties — tick any you have noticed

Discovery sequence
1
In the ancient Mediterranean, around 1400 BCE, someone — probably a Mycenaean Greek metalworker — bent a piece of bronze wire into a particular shape. The wire bent into a coil at one end, with one arm rising straight upward and the other curving back into a loop with a small catch. Sharpened, the rising arm became a pin. Pushed through cloth and clicked into the catch on the other side, the pin held the cloth fastened. The coil acted as a spring. The whole device was a single piece of metal, with the safety mechanism designed in. This is a fibula. The word is Latin for 'pin' or 'clasp', and is now also used in anatomy for the smaller bone of the lower leg. As a clothing fastener, the fibula was the standard pin design across the ancient Mediterranean and Europe for over 2,000 years. Mycenaean Greek fibulae from around 1400-1100 BCE. Greek and Etruscan fibulae from about 800-300 BCE. Roman fibulae from about 200 BCE to 400 CE. Celtic, Germanic, and Anglo-Saxon fibulae from about 200 BCE to 800 CE. Examples have been found in tens of thousands of archaeological sites. Fibulae were not just pins. They were often elaborate pieces of metalwork. Etruscan gold fibulae from the 7th century BCE include some of the most beautiful goldwork ever made — granulation, filigree, and inlay turning the simple pin into a status symbol. Roman crossbow fibulae from the 3rd century CE were given as gifts to military officers. Anglo-Saxon disc fibulae from the 6th century CE were major personal possessions, often buried with their owners. The fibula was so universal in the ancient and early medieval world that buttons, when they came, were almost an afterthought. The Romans had buttons but used them rarely. Buttons only became dominant in European clothing from about the 13th century onwards. By that time, the fibula was largely forgotten as a design. Why might one design last for over 2,000 years and then almost disappear?
Points to consider (for the teacher)

The fibula lasted because it solved a real problem extremely well. Most ancient and early medieval clothing — Greek chitons, Roman togas, Celtic cloaks, Anglo-Saxon tunics — was draped or wrapped rather than tailored. Such clothing needed something to hold it in place at specific points (shoulders, throats, waists). The fibula was perfect for this: a single device that closed cloth securely, with a built-in safety mechanism so the wearer wasn't pricked. The design was repeated, with elaborations, across many cultures and 2,000+ years. The fibula faded with changes in clothing. Tailored clothing — clothes cut to fit the body, with fixed openings at specific places — became dominant in medieval Europe from about the 13th century onwards. Tailored clothing has fewer 'free' edges to fasten; instead it has specific openings (sleeves, neck, front) that need closures at fixed points. Buttons through buttonholes work better for this than fibulae. As clothing changed, the fibula became unnecessary. The wider point is that 'good design' is good design for specific contexts. Change the context, and the design may no longer work as well. The fibula was perfect for draped clothing, replaceable for tailored clothing. Walter Hunt's 1849 reinvention came when fibula-style fasteners were genuinely needed again — for diaper pins, for fastening blankets, for emergency clothing repairs, for situations where tailored buttons did not work. Students should see that 'invention' often comes when an old idea suddenly becomes useful again. Hunt did not know he was reinventing the fibula. He just saw a problem (dangerous straight pins) and solved it with a piece of bent wire. The fact that ancient Greeks had solved the same problem the same way 3,000 years earlier was not visible to him.

2
Walter Hunt was a prolific American inventor who lived from 1796 to 1859. Born in upstate New York, he moved to New York City in the 1820s and worked as a mechanic and inventor for the rest of his life. He invented many things. The list is remarkable. In 1834, Hunt invented a working lockstitch sewing machine. This was 12 years before Elias Howe's famous 1846 patent and 17 years before Isaac Singer's 1851 commercial success. Hunt's machine actually worked. He could have patented it and become rich. He did not. According to his daughter, he was concerned that the machine would put many poor seamstresses out of work. He chose not to patent it. (See the sewing machine lesson for the wider story of how this technology eventually changed the world.) In 1849, Hunt patented the modern safety pin. He sold the patent immediately for $400 to settle a $15 debt. He used $15, kept $385, and moved on to his next invention. In 1849 also, Hunt patented a forerunner of the Winchester repeating rifle. He sold this patent too for very little. Over his life, Hunt held patents on a flax spinner, a knife sharpener, a fountain pen, a rope-making machine, a streetcar bell, a hard-coal-burning stove, artificial stone, street sweeping machinery, the velocipede (an early bicycle), an ice plough, and many others. He invented dozens of things and made very little money from any of them. He died in 1859 having lived modestly his whole life. Why might one of the most prolific American inventors of the 19th century make so little money?
Points to consider (for the teacher)

Several reasons together. Hunt was not a good businessman. He invented things and moved on, rarely seeing the commercial potential. He sold patents quickly and cheaply. The lockstitch sewing machine — which he gave up entirely — was eventually worth millions to Singer and others. The Winchester repeating rifle was worth millions to Winchester. The safety pin was worth millions to W.R. Grace. Hunt got tiny fractions of any of this. Hunt also had ethical concerns that some inventors of his time did not. The lockstitch sewing machine story is striking — he actually believed that putting seamstresses out of work was wrong, and chose not to commercialise his invention. This is unusual; most inventors then and now would not have made the same choice. Hunt also had bad luck. He invented at a time before strong intellectual property infrastructure. Patent disputes were common. Inventors who could afford lawyers (like Singer) did much better than those who could not (like Hunt). Hunt was one of the latter. His inventions enriched others. The wider point is that 'invention' is not the same as 'commercial success'. Many great inventors have made little money from their inventions. Many wealthy entrepreneurs have built fortunes on others' inventions. Walter Hunt is a classic case of the first; Isaac Singer is a classic case of the second. Both played important roles in the actual technological history. The wider lesson is also about the ethics of work. Hunt's concern about seamstresses losing their jobs is a real ethical position, even if the wider history shows that the sewing machine eventually came anyway and reshaped global garment industry (sometimes in ways that hurt workers, especially women, as the sewing machine lesson shows). Students should see that 'invention' has both technical and ethical dimensions. End the example by noting that Hunt was inducted into the National Inventors Hall of Fame in 2006 — 147 years after his death. The recognition came late but is real.

3
The safety pin is, first of all, a working tool. It does its job billions of times every day worldwide. Dressmakers and tailors use safety pins to hold cloth in place during fitting. Theatrical costumiers use them to make quick alterations behind the scenes. Hospitals use them to fasten bandages — a 'safety pin' is in many first-aid kits worldwide. Race officials use them to attach competitors' numbers to their shirts (the modern Olympic and marathon practice continues a tradition over 100 years old). Diaper pins (with extra-safe locking heads) hold cloth nappies in place — used worldwide before disposable diapers, and still used in many countries today. Quilters use them to layer cloth before sewing. The safety pin also holds together emergencies. A torn hem can be fixed in seconds. A broken zipper can be replaced. A name tag can be attached. A small pocket can be created. A medieval-style cloak can be made into a fitted garment. The safety pin's combination of low cost, ubiquity, and quick application makes it the universal emergency clothing tool. In theatre and film, safety pins are essential. Costume departments keep thousands. A famous theatrical superstition holds that a costume not pinned together at the dress rehearsal will fail in performance — the safety pin is part of the magic of getting things ready in time. Safety pins also have specific cultural uses. In India, ornate safety pins are passed down through generations as small heirlooms. In Ukraine, safety pins are sometimes attached to children's clothing to ward off the evil eye — a folk tradition still alive today. In Mexico, safety pins are used in the Day of the Dead celebrations to attach photographs to clothing. In many parts of Africa and South Asia, safety pins are part of the everyday toolkit of women's daily clothing. Why might one tiny object be so universally useful?
Points to consider (for the teacher)

Because it solves a wide range of fastening problems with a single design. Need to hold two pieces of cloth together temporarily? Safety pin. Need to attach something flat (badge, photograph, paper) to clothing? Safety pin. Need to mark something with a coloured indicator? Safety pin (in different colours). Need to repair a torn hem until you can sew it properly? Safety pin. The same object handles all of these. The cost is tiny. A box of 100 safety pins costs about $2 in most countries. A single safety pin handles many uses. Lost ones are easily replaced. The wider point is that 'good design' often comes when one solution handles many problems. The Swiss Army Knife handles many problems with one tool — but it has many parts. The safety pin handles many problems with one part. The simplicity is itself a major design achievement. The safety pin also benefits from extreme manufacturing scale. Modern factories produce billions of safety pins per year at fractions of a cent each. The economic infrastructure of mass-produced metal has made the safety pin extremely cheap — cheaper, in real terms, than at any time in history. The 19th century would have considered today's price for safety pins almost unbelievable. Students should see that 'simple' is not the same as 'unimportant'. The safety pin is one of the most quietly important objects of modern life. We use them constantly without thinking about them. The day they would all disappear would be a day of small chaos worldwide.

4
In the late 1970s, the safety pin became something else: a piece of fashion and political identity. The punk rock movement in London — the Sex Pistols, the Clash, the Damned, and others — adopted the safety pin as a visible marker. Vivienne Westwood, the British fashion designer, used safety pins prominently in her clothes for the punk band's manager Malcolm McLaren. Punk musicians wore safety pins through ripped clothes, attached to ears as piercings, on jackets and t-shirts as decoration. The safety pin was part of the punk look — a deliberate use of cheap, ordinary, slightly dangerous everyday objects to express anti-establishment, working-class identity. The punk era ended, but the safety pin's symbolic life continued. Safety pins appeared in various political contexts — sometimes as anti-fashion statements, sometimes in protest movements. Then, in 2016, something dramatic happened. In June 2016, the UK voted in the Brexit referendum to leave the European Union. In the days after the vote, reports of racist and xenophobic attacks on immigrants in the UK rose sharply. People wanted to express solidarity with those affected. A British woman named Allison, posting on Twitter, suggested that people wear safety pins on their clothes — a small, cheap, visible signal that the wearer was a 'safe person' that immigrants could approach for help. The idea spread quickly. Within a week, safety pins were appearing on clothing across the UK. Then in November 2016, after Donald Trump's election in the United States, the same idea spread to America. Safety Pin Nation, an online group, distributed messaging about what wearing a pin meant. By December 2016, hundreds of thousands of people in the UK and US were wearing safety pins. The campaign was criticised. Some commentators called it 'slacktivism' — slacker activism, the doing of nothing meaningful while feeling like you had done something. Others argued it was meaningful as a visible signal of solidarity, especially when combined with other actions. Both critiques were real. The campaign mostly faded after 2017, though the safety pin retained some symbolic association with progressive politics. What does this teach us?
Points to consider (for the teacher)

That small objects can become political through specific historical moments. The safety pin had been a fashion item, a tool, a punk marker. In 2016, in a specific political context, it became a solidarity symbol. The decision was almost spontaneous — one person's idea on Twitter, picked up by thousands, then millions. This kind of fast political symbolism is now common because of social media. The wider point is about what symbols can and cannot do. Wearing a safety pin does not actually prevent racist attacks. It does signal something — that the wearer is not silent, that they oppose the violence. Some critics argued this was not enough. Some defenders argued that signals matter, that public expression of solidarity reduces isolation and signals to potential attackers that bystanders are watching. Both arguments have merit. The honest answer is that the safety pin campaign was probably worth something but not as much as wearing a pin and then doing nothing else. The critics had a point about slacktivism; the supporters had a point about visible solidarity. The mature position is to wear the pin AND also speak up, vote, donate, organise, intervene. Symbols and actions go together. The wider history of safety pins as political symbols is also worth noting. The punk movement used them. The Brexit/Trump-era movements used them. Various other movements have used them. The safety pin is a small, cheap, ubiquitous object that can be deployed quickly as a political symbol when a moment requires one. It is unusually well-suited to this role. Students should see that political symbols come and go. The safety pin's specific political meaning may shift again. But the broader pattern — small everyday objects becoming political symbols — is enduring. The yellow ribbon for support of military, the red AIDS ribbon, the pink breast cancer ribbon, the Palestinian keffiyeh, the Dutch orange, the white flower of remembrance — all are small everyday objects that have taken on specific political meanings in specific moments. The safety pin is one of many. End the discovery here. The pin in someone's pocket today might just be holding up a hem. Or it might be marking a position. Both are real. Both are part of the safety pin's life.

What this object teaches

The safety pin is a fastening device made of a single piece of metal wire, bent into a spring loop with a sharp point at one end and a protective cap at the other. The cap covers the point when the pin is closed, preventing accidental injury. The modern safety pin was patented by American inventor Walter Hunt in 1849. He sold the patent for $400 to settle a $15 debt. The same Walter Hunt had invented a working lockstitch sewing machine in 1834 but had not patented it because he was concerned about putting seamstresses out of work. The basic design of the safety pin is much older than Hunt. The fibula — a brooch-and-pin combination using essentially the same spring-and-catch principle — was used in the ancient Mediterranean from at least 1400 BCE. Mycenaean Greek, Etruscan, Greek, Roman, Celtic, Germanic, and Anglo-Saxon fibulae used the same design for over 2,000 years. Some ancient fibulae are masterpieces of metalwork, particularly the gold Etruscan fibulae of the 7th century BCE. The fibula faded as tailored clothing replaced draped clothing in medieval Europe. Hunt's 1849 'invention' was therefore a reinvention. Today, the safety pin is one of the most universally useful tools in the world, used billions of times daily for fastening clothing, holding bandages, attaching name tags, fixing torn hems, and many other small tasks. Modern factories produce billions of safety pins per year. The safety pin has also become a political and fashion symbol. In the late 1970s, punk musicians (especially Vivienne Westwood and the Sex Pistols) used safety pins prominently. After the 2016 Brexit referendum and the 2016 US election, people in the UK and US began wearing safety pins as a sign of solidarity with immigrants and minorities. The campaign was both praised and criticised — praised for its visible solidarity, criticised as slacktivism. Both critiques are real. The safety pin remains both a working tool and an occasional political symbol.

DateEventWhat changed
From about 1400 BCEMycenaean Greeks make bronze fibulaeFirst known examples of the spring-and-catch pin design
7th century BCEEtruscan goldsmiths make masterpiece gold fibulaeFibulae become high-status decorative objects
Roman periodCrossbow fibulae used widely across the Roman empireStandard military and civilian fastener for centuries
By about 800 CEAnglo-Saxon disc fibulae among the last great fibula traditionFibula tradition begins to fade
From 13th centuryButtons replace fibulae as European clothing becomes tailoredFibula design largely forgotten
1834Walter Hunt invents working lockstitch sewing machine, does not patent itConcern for seamstresses' jobs delays sewing revolution
10 April 1849Walter Hunt patents the modern safety pinSells patent for $400 to settle $15 debt
1859Walter Hunt dies, still relatively poorHis inventions go on to make millions for others
Late 1970sPunk movement adopts safety pins as fashionVivienne Westwood, Sex Pistols, others use them prominently
June 2016After Brexit referendum, safety pins worn in UK as solidarity symbolPins signal 'safe person' to immigrants and minorities
November 2016After Trump election, safety pin campaign spreads to USHundreds of thousands wear pins; both praised and criticised
2006Walter Hunt inducted into National Inventors Hall of FamePosthumous recognition 147 years after his death
Key words
Safety pin
A fastening device made of a single piece of metal wire bent into a spring loop, with a sharp point at one end and a protective cap at the other. The cap covers the point when the pin is closed, preventing injury. The spring keeps the pin closed when not in use.
Example: Modern safety pins range from about 2 cm long (delicate fabric) to over 10 cm (blanket pins). They are made of stainless steel and produced by the billions worldwide. The basic design has hardly changed since 1849.
Walter Hunt
American inventor (1796-1859), patented the modern safety pin in 1849. Also invented the lockstitch sewing machine (1834, unpatented), a forerunner of the Winchester repeating rifle, a flax spinner, a fountain pen, a streetcar bell, and many other devices. Made little money from his many inventions.
Example: Hunt's daughter said he chose not to patent the sewing machine because he was concerned it would put seamstresses out of work. This is unusual ethical reasoning for an inventor and is part of why he died poor while others profited from similar ideas.
Fibula
An ancient brooch-and-pin combination using essentially the same spring-and-catch principle as the modern safety pin. Used across the Mediterranean and Europe from about 1400 BCE to about 800 CE. Made of bronze, iron, gold, silver, or copper.
Example: Etruscan gold fibulae from the 7th century BCE include some of the most beautiful goldwork ever made. Roman crossbow fibulae from the 3rd century CE were given as gifts to military officers. Anglo-Saxon disc fibulae from the 6th century CE were major personal possessions buried with their owners.
Punk
A music and fashion movement that emerged in the UK and US in the mid-1970s. Characterised by aggressive rock music, anti-establishment attitudes, and DIY aesthetics. Adopted the safety pin as a visible marker, both as fashion and as ear/face piercings.
Example: Vivienne Westwood (1941-2022), the British fashion designer, used safety pins prominently in her clothes for the Sex Pistols' manager Malcolm McLaren. The image of safety pins as part of punk fashion has continued in punk-influenced clothing ever since.
Safety Pin Solidarity
A movement that emerged in the UK after the 2016 Brexit referendum and spread to the US after the 2016 election of Donald Trump. People wore safety pins on their clothes as a sign of solidarity with immigrants and minorities feeling threatened.
Example: The campaign was started by a British Twitter user named Allison and spread quickly through social media. By December 2016, hundreds of thousands of people in the UK and US were wearing pins. The campaign was both praised as visible solidarity and criticised as slacktivism.
Slacktivism
A critical term for forms of activism that involve very low effort — sharing a post on social media, wearing a pin, signing an online petition. Critics argue that slacktivism creates a feeling of having done something without actually requiring effort or change.
Example: The Safety Pin Solidarity movement was sometimes criticised as slacktivism. Defenders argued that visible solidarity has its own value, especially when combined with other actions. Most thoughtful commentators concluded that pins are useful when worn alongside real action, less useful when worn instead of action.
Use this in other subjects
  • History: Build a class timeline of pins: ancient fibulae from about 1400 BCE, fibula tradition continues for over 2,000 years, fades by 800 CE, gap of 1,000 years, Walter Hunt patents modern safety pin (1849), punk era (1970s), Safety Pin Solidarity (2016). The story spans 3,400 years.
  • Science / Engineering: Discuss the engineering of the safety pin. The spring loop is essentially a torsion spring, providing constant force to keep the pin closed. The cap covers the point when closed. The single piece of wire has all the parts integrated. Compare with other simple machines that use spring tension.
  • Citizenship: Discuss the Safety Pin Solidarity movement after Brexit and the Trump election. Was wearing a pin meaningful? Was it slacktivism? When does symbolic solidarity matter? Strong answers will see this is a real ongoing question, true of many forms of political symbolism.
  • Art / Design: Look at Etruscan gold fibulae from the 7th century BCE — some of the most beautiful goldwork ever made. Then look at modern stainless steel safety pins. Discuss how the same basic design can be expressed in extreme luxury and extreme everyday utility. Both work for different purposes.
  • Ethics: Walter Hunt did not patent his lockstitch sewing machine because he was concerned about putting seamstresses out of work. He died poor while others made fortunes. Discuss the ethics of his choice. Was he right to refuse? What might have been the consequences if he had patented it? Strong answers will see that thoughtful people can reach different conclusions.
  • Language: The English word 'fibula' is from Latin, meaning 'pin' or 'clasp'. The same word is used in anatomy for the smaller bone of the lower leg, which has a similar long thin shape. Discuss how words for objects can also become words for body parts based on shape. Other examples: the cochlea (inner ear, 'snail shell'), the pelvis ('basin'), the skull ('shell').
Common misconceptions
Wrong

Walter Hunt invented the safety pin from scratch.

Right

Hunt invented the modern industrial safety pin in 1849, but the basic design — spring loop, sharp point, protective cap — had been used in the Mediterranean and Europe as the fibula from at least 1400 BCE. The fibula tradition lasted over 2,000 years before being largely forgotten by the medieval period. Hunt's 1849 'invention' was a reinvention.

Why

'From scratch' overclaims what Hunt did. Most successful inventions reuse and reformulate older ideas.

Wrong

Walter Hunt got rich from inventing the safety pin.

Right

He sold the patent for $400 to settle a $15 debt and made very little from his many inventions over his lifetime. He died in 1859 still relatively poor. The companies that bought his patents made millions.

Why

'Inventor gets rich' is a common assumption that is often false. Many great inventors made little from their inventions; commercial success usually requires specific business and legal skills that not all inventors have.

Wrong

The safety pin is just a fashion item.

Right

The safety pin is first and foremost a working tool used billions of times daily worldwide for clothing repair, bandages, attaching name tags, holding nappies, theatrical costumes, and many other purposes. Its fashion and political symbolism are real but secondary to its everyday use.

Why

'Just fashion' undersells what the safety pin actually is in most of its uses.

Wrong

Safety Pin Solidarity in 2016 was meaningless.

Right

The movement is genuinely contested. Some critics argued it was slacktivism — visible without being effective. Some supporters argued visible solidarity has its own value. Most thoughtful analysis concludes that wearing a pin is useful when combined with real action (voting, donating, organising, intervening) and less useful when worn instead of action. The truth is somewhere between the two extremes.

Why

'Meaningless' overclaims, like 'completely meaningful' would. Symbolic actions have their place; they are not enough on their own.

Teaching this with care

Treat the safety pin as the genuinely interesting object it is — both an everyday tool and an occasional political symbol. Pronounce 'fibula' as 'FIB-yu-la'. 'Mycenaean' as 'my-suh-NEE-an'. 'Etruscan' as 'ee-TRUSS-can'. 'Vivienne Westwood' as 'VIV-ee-en WEST-wood'. Be careful with the political content. The Brexit referendum and the 2016 US election are still politically contested. The Safety Pin Solidarity movement was associated with one side of these issues. Mention the movement honestly without taking political positions. The slacktivism critique came from both left and right and is worth presenting fairly. Be respectful of people who lived through 2016. Many of the events are within living memory for adults; some students may have family members who were affected by post-Brexit racism or post-Trump tensions. Treat the topic with care. Be honest about Walter Hunt's complicated legacy. He was prolific and ethical (refusing to patent the sewing machine for workers' sake) but also poor and unrecognised in his lifetime. He was inducted into the National Inventors Hall of Fame only posthumously in 2006. The wider lesson — that invention and commercial success often diverge — is real and worth teaching. Be careful with the punk movement context. Punk in the 1970s was a working-class British and American youth movement with specific political and aesthetic positions. Some of its imagery was deliberately provocative and may not be appropriate for younger students. Use the safety pin punk reference briefly without going into detailed punk imagery (which sometimes included explicit content). Be honest about the fibula tradition. Fibulae were used across many cultures over 2,000+ years. Treat them respectfully as the high-craft objects they often were. The Etruscan gold fibulae are masterpieces of metalwork and deserve serious attention. If you have students who wear safety pins as fashion or political symbols today, give them space without making them feel highlighted. Treat the lesson as about the object, not about specific people who use it. Avoid the lazy 'simple objects can change the world' framing. The safety pin doesn't change the world. It does fasten cloth securely, save fingers from being pricked, and occasionally serve as a political symbol. These are real uses, but they are real and modest. Finally, end the lesson on the present. The safety pin is in pockets, drawers, and on clothing right now. Its story continues.

Check what students have understood

Answer each question in one or two sentences. Use what you have learned about the safety pin.

  1. Who invented the modern safety pin, and why?

    The American inventor Walter Hunt patented the modern safety pin in 1849. He invented it in three hours specifically to settle a $15 debt. He sold the patent immediately for $400. The same Walter Hunt had also invented a working lockstitch sewing machine in 1834 but had not patented it because he was concerned about putting seamstresses out of work.
    Marking note: Award full marks for any answer that mentions both Hunt and the basic context (debt, $400 patent sale).
  2. How does the safety pin relate to ancient fibulae?

    The basic design — spring loop, sharp point, protective cap — was used in the ancient Mediterranean as the fibula from at least 1400 BCE. Mycenaean Greek, Etruscan, Roman, Celtic, Germanic, and Anglo-Saxon fibulae all used essentially the same principle. The fibula tradition lasted over 2,000 years before being largely forgotten when tailored clothing replaced draped clothing in medieval Europe. Hunt's 1849 'invention' was therefore a reinvention.
    Marking note: Strong answers will mention both the fibula's age (1400 BCE+) and the connection to Hunt (reinvention).
  3. How is the safety pin used today as a working tool?

    It is one of the most universally useful tools in the world. Used for fastening clothing, holding bandages, attaching name tags, fixing torn hems, holding cloth nappies, theatrical costume work, attaching race numbers to runners' shirts, and many other small tasks. Modern factories produce billions of safety pins per year. They are extremely cheap (about $2 for 100), making them ubiquitous worldwide.
    Marking note: Award full marks for any answer that mentions multiple uses and the basic ubiquity.
  4. How did punk musicians use the safety pin?

    In the late 1970s, the punk movement in the UK and US (Sex Pistols, Vivienne Westwood, the Clash, and others) adopted the safety pin as a visible fashion marker. They wore safety pins through ripped clothes, attached as ear piercings, on jackets and t-shirts. The safety pin was part of the punk look — a deliberate use of cheap, ordinary, slightly dangerous everyday objects to express anti-establishment, working-class identity.
    Marking note: Strong answers will mention both the basic punk usage and the symbolic significance (DIY, anti-establishment).
  5. What was Safety Pin Solidarity in 2016, and why was it controversial?

    After the June 2016 Brexit referendum in the UK and the November 2016 US presidential election, people in both countries began wearing safety pins on their clothes as a sign of solidarity with immigrants and minorities feeling threatened by post-vote tensions. The pins signalled that the wearer was a 'safe person'. The movement was praised as visible solidarity and criticised as slacktivism (low-effort activism that creates a feeling of having done something without actually requiring meaningful action). Both critiques have merit.
    Marking note: Award full marks for any answer that mentions both the basic solidarity meaning and the slacktivism critique.
Discuss together

These questions have no single right answer. Talk in pairs or small groups, then share your ideas with the class.

  1. Walter Hunt did not patent his sewing machine because he was concerned about putting seamstresses out of work. Was he right?

    This question is a real ethical debate. Possible answers: Hunt was right because his choice prevented immediate harm to workers; Hunt was wrong because the sewing machine eventually came anyway (through Howe and Singer) and his choice just meant he didn't profit; Hunt was wrong because the sewing machine eventually employed millions in better-paid factory work; Hunt was right because his individual choice mattered even if the wider trend was beyond his control. The deeper point is that ethical choices often involve real trade-offs between current and future, individual and collective. Strong answers will see that thoughtful people can reach different conclusions. End by noting that Hunt is one of the rare historical figures whose ethics about workers were ahead of his time. End with the question of whether modern inventors have similar duties.
  2. Wearing a safety pin in 2016 was either meaningful solidarity or meaningless slacktivism. Where do you stand?

    This question gets at a real political debate. Possible answers in favour of solidarity: visible signs of support reduce isolation for vulnerable people; small actions can build community; signalling matters even without further action; the cost was small and the benefit potentially real. Possible answers in favour of the slacktivism critique: feeling of having done something prevents real action; the pin doesn't actually stop attacks; visible solidarity without action is performance. The mature position is that pins are useful when combined with real action, less useful when worn instead. Strong answers will see this nuance. End by asking: what other modern symbolic actions raise the same question? (Hashtags, profile picture changes, ribbon-wearing, etc.)
  3. In your community, are there small everyday objects that have become political or cultural symbols?

    This question brings the lesson home. Students may name: ribbons (red AIDS, pink breast cancer, yellow military), the Palestinian keffiyeh, the Welsh dragon, Scottish tartans, religious symbols (cross, Star of David, crescent), national flags, sports team colours, school uniforms, traditional clothing in protest contexts. The deeper point is that small everyday objects routinely take on political and cultural meaning. The safety pin is one example among many. Strong answers will think about specific objects and what they mean to specific communities. End by saying that students themselves may live to see new symbolic objects emerge or old ones change meaning.
Teaching sequence
  1. THE HOOK (5 min)
    Hold up a safety pin (or describe one). Ask: 'What is this for?' Take answers — students will say fastening clothing. Then say: 'Yes — and the basic design is over 3,400 years old. It has also been a punk fashion symbol and a political solidarity sign. We are going to find out about a small object with a surprisingly big story.'
  2. INTRODUCE THE OBJECT (10 min)
    Describe the safety pin's design: spring loop, sharp point, protective cap, all in a single piece of metal. Walter Hunt patented it in 1849 to settle a $15 debt. He sold the patent for $400. Pause and ask: 'Why might one inventor make so little money from such a successful invention?' Listen to answers. They will lead naturally into the ideas of patent law, business skills, and historical luck.
  3. THE FIBULA (15 min)
    Tell the longer story. The fibula was used from at least 1400 BCE. Mycenaean, Etruscan, Roman, Anglo-Saxon — over 2,000 years of fibulae using essentially the same design as Hunt's safety pin. The Etruscan gold fibulae are masterpieces. The fibula faded as tailored clothing replaced draped clothing in medieval Europe. Hunt's 'invention' was therefore a reinvention. Discuss: Hunt did not know about fibulae. He just solved the same problem the same way 3,000 years later. What does this tell us about invention?
  4. POLITICS AND FASHION (10 min)
    Tell the modern story. Punk in the 1970s — Vivienne Westwood, Sex Pistols. The 2016 Safety Pin Solidarity after Brexit and the Trump election. The slacktivism debate. Discuss: when does a small everyday object become a political symbol? Strong answers will see that this depends on specific historical moments and the choices of people in those moments.
  5. CLOSING (5 min)
    Ask: 'What does the safety pin teach us about how invention, fashion, and politics interact?' Take a few honest answers. End by saying: 'It teaches that small objects can carry enormous histories. The safety pin in your pocket is part of a 3,400-year tradition of pin-and-spring fasteners, a 19th-century invention story about a poor inventor and a $15 debt, a 1970s punk fashion movement, a 2016 political symbol, and tens of billions of everyday uses worldwide. The pin is doing its small job right now. The story continues.'
Classroom materials
Engineer the Pin
Instructions: In small groups, students try to design a fastening device using only a single piece of bent wire. They must include: a sharp point, a way to keep the point covered when not in use, and a way to make the device easy to open and close. Each group draws their design. Discuss: which designs work? Compare with the actual safety pin design.
Example: In Mr Patel's class, students arrived at variations of the spring-and-cap design independently. The teacher said: 'You have just done what Walter Hunt did in three hours in 1849, and what Mycenaean Greek metalworkers did 3,000 years before him. The same problem (a sharp pin that needs to be safe when stored) has the same basic solution (a spring to keep it closed and a cap to cover the point). Good engineering tends to converge on similar answers when faced with similar problems.'
The Reinvention
Instructions: In small groups, students discuss other examples of reinvention — things invented in one era, lost, and reinvented later. Examples may include: pneumatic tyres (Robert Thomson 1845, John Dunlop 1888); central heating (Roman hypocaust, lost, reinvented); mass-produced glass (Roman, lost, reinvented); concrete (Roman, lost, reinvented); aspirin (willow bark known since ancient times, isolated as compound 1899). Discuss: why does knowledge get lost?
Example: In Mrs Diop's class, students were surprised by how often things had been lost and reinvented. The teacher said: 'You have just discovered one of the patterns of human history. Knowledge is not a steady accumulation. It can be lost when civilisations decline, languages change, books burn, or skills are not passed on. The fibula is one example. Roman concrete is another. The wider lesson is that we should preserve knowledge actively, because some knowledge is more fragile than it appears.'
Symbolic Objects
Instructions: In small groups, students list as many small everyday objects as they can that have become political or cultural symbols in any context. Discuss: how does an everyday object become symbolic? Examples to seed discussion: ribbons (AIDS, breast cancer), keffiyeh, hijab, kippah, cross, Star of David, crescent, sports colours, military stripes, school uniforms, hat colours, flag patterns. Each group shares one example.
Example: In one class, students compiled a long list including modern items like emojis, hashtags, and profile picture frames. The teacher said: 'You have just identified the wide pattern of symbolic everyday objects. The safety pin is one specific example. The mechanism is similar across cases — a small visible object becomes a quick way to signal identity, position, or solidarity. The specific objects change with the times. The basic human practice continues.'
Where to go next
  • Try a lesson on the sewing machine for the wider story of Walter Hunt's other major invention.
  • Try a lesson on the suffragette penny for another small everyday object turned into a political symbol.
  • Try a lesson on the cowrie shell for another small object with deep cross-cultural significance.
  • Connect this lesson to history class with a longer project on the Industrial Revolution and the patent system.
  • Connect this lesson to citizenship class with a longer discussion of political symbolism — when symbols help, when they distract, what they cost and earn.
  • Connect this lesson to art class with a longer project on Etruscan goldwork or ancient fibulae more generally.
Key takeaways
  • The safety pin is a fastening device made of a single piece of metal wire bent into a spring loop, with a sharp point at one end and a protective cap at the other. The cap covers the point when closed, preventing injury.
  • The modern safety pin was patented by American inventor Walter Hunt on 10 April 1849. He invented it in three hours specifically to settle a $15 debt and sold the patent for $400. He died in 1859 still relatively poor while others made millions from his many inventions.
  • The basic design is much older than Hunt. The fibula — using essentially the same spring-and-catch principle — was used in the ancient Mediterranean and Europe from at least 1400 BCE. The fibula tradition lasted over 2,000 years before being largely forgotten when tailored clothing replaced draped clothing in medieval Europe.
  • The same Walter Hunt invented a working lockstitch sewing machine in 1834 but did not patent it because he was concerned about putting seamstresses out of work. The sewing machine eventually came anyway through Elias Howe (1846) and Isaac Singer (1851).
  • Today, the safety pin is one of the most universally useful tools in the world, used billions of times daily for clothing repair, bandages, name tags, theatrical costumes, and many other small tasks. Modern factories produce billions of safety pins per year.
  • The safety pin has also become a political and fashion symbol. The punk movement of the late 1970s used safety pins prominently. After the 2016 Brexit referendum and the US election, hundreds of thousands of people in the UK and US wore safety pins as a sign of solidarity with immigrants and minorities. The campaign was both praised and criticised as slacktivism.
Sources
  • A Visual History of the Safety Pin — Museum of Every Day Life (2012) [academic]
  • Walter Hunt — National Inventors Hall of Fame — National Inventors Hall of Fame (2006) [institution]
  • Pins and Needles: A History of Beauty — Carolyn Meyer (1995) [academic]
  • The Safety Pin as Solidarity Symbol — BBC News (2016) [news]
  • Etruscan Gold Fibulae — collection page — Metropolitan Museum of Art (2024) [institution]