The History of Cloth — A two-part series

• Part 1: From Natural Materials to Fiber (current)
• Part 2: From Nature’s Thread to Human-Made Fiber

The History of Cloth Part 1: From Natural Materials to Fiber

There are two kinds of lice that live on the human body. Head lice live among the hair, while body lice live only inside clothing. Body lice can’t survive for long on bare skin — they lay their eggs in the fibers of fabric and only crawl onto skin briefly, when clothes are changed, to feed on blood. Yet these two kinds of lice were originally a single species. When humans created clothing — a new environment distinct from the body itself — a branch of head lice adapted to that environment and split off into what we now call body lice. If we can pin down when these two species diverged genetically, we can estimate a lower bound for when humans began wearing clothes. Clothing itself, whether made of hide or plant fiber, is organic material that almost never survives tens of thousands of years intact. But the evolutionary trace left behind in lice does survive.

The first team to put this idea into practice was led by Ralph Kittler at Germany’s Max Planck Institute for Evolutionary Anthropology in 2003. Using segments of mitochondrial and nuclear DNA, they built a molecular clock to calculate when head lice and body lice diverged.^[1] The calculation put the split somewhere between roughly 32,000 and 114,000 years ago, with a point estimate of about 72,000 years ago (margin of error ±42,000 years).^[1] In 2011, a team led by Melissa Toups at the University of Florida attempted the same calculation again. This time, instead of relying on a single gene, they analyzed four genes together — three nuclear genes and one mitochondrial gene.^[2] Looking at only one gene risks skewing the estimate because of chance mutations specific to that gene; combining several genes reduces that risk. Toups’s team arrived at a median divergence date of about 170,000 years ago. That estimate, however, carried considerable uncertainty, with a statistically plausible range stretching from 29,000 to as far back as 691,000 years ago.^[2]

These are two separate estimates, produced by different labs using different methods. Rather than arguing over the precise number, it’s worth noting what both studies point to in common: humans were already wearing something on their bodies long before leaving Africa — anywhere from tens of thousands of years ago to, at the outer edge, 170,000 years ago. There’s one more striking detail tied to this timing. Toups’s team pointed out that clothing use appears to predate the start of the migration out of Africa, which suggests clothing may not have originated as an invention for keeping warm, but existed even earlier for some other reason.^[2] In other words, the origin of clothing may not have been tied directly to climate at all.

Thirty Thousand Years of Physical Evidence, and a Hundred-Thousand-Year Gap

What lice research tells us is only a lower bound for when clothing began — it says nothing about what that clothing was actually made of. Turn to physical fiber remains, and the story changes completely. In 2009, a remarkable discovery came out of Dzudzuana Cave, at the foot of the Caucasus Mountains in Georgia. A team led by Eliso Kvavadze examined clay samples from the cave floor under a microscope and found 787 fiber fragments.^[3] Analysis showed these fibers came from wild flax, and remarkably, they had already been spun and twisted into thread, with some even bearing traces of dye.^[3] This wasn’t simply evidence of gathered plants — it was evidence of a fairly advanced fiber-processing technology already in place.

The paper the research team published in the journal Science was titled “30,000-Year-Old Wild Flax Fibers.”^[3] Yet Guinness World Records, describing the same discovery, lists the fiber’s age as “more than 34,000 years.”^[4] The discrepancy exists because the cave contains traces of human occupation spanning multiple periods. Radiocarbon dating divided the cave’s sediment layers into roughly three periods, with the oldest ranging from about 32,000 to 26,000 years ago.^[3] The “30,000 years” in the paper’s title was a conservative figure meant to span these several periods, while Harvard University’s press release announcing the discovery cited the age of fibers from the oldest layer specifically, giving the figure of “more than 34,000 years.”^[5] Both numbers ultimately come from the same research — they simply describe different reference points within the same set of sediment layers.

What deserves real attention here lies elsewhere. Between the origin of clothing suggested by lice research (a point estimate of roughly 72,000 to 170,000 years ago) and the age of the physical evidence from Dzudzuana Cave (30,000 to 34,000 years ago), there is a gap of at least tens of thousands of years — potentially more than 100,000. No direct physical evidence has yet been found telling us what humans wore during that long stretch of time. Organic textiles decompose quickly in environments with adequate humidity and oxygen. The fibers at Dzudzuana Cave survived only because caves offer a dry, stable environment. In other words, most of the history of human clothing is an unrecorded gap, and what we know is merely the small fraction of evidence that happened to survive.

Hide and Fur — the Oldest Material, but the Last to Be Proven

It’s commonly assumed that the earliest human clothing was made from animal hide and fur. That’s a reasonable guess, since hide was the most readily available material from an animal killed for its meat. The problem is that hide and fur are just as organic as flax, and don’t survive nearly as long as fossils do. So researchers support this assumption not with the hide itself, but with the tools used to process it.

In 2021, an excavation at Contrebandiers Cave on Morocco’s Atlantic coast filled part of that gap. The research team found 62 bone tools in the cave’s Middle Stone Age layers, dated to roughly 90,000 to 120,000 years ago.^[6] Based on their shapes, these tools appeared specialized for processing hide and fur. Even more decisive evidence came from cut marks found on the bones of desert foxes, black-backed jackals, and wildcats discovered alongside the tools. The incisions on the paws and skulls matched exactly the pattern expected from skinning an animal whole, rather than cutting away meat.^[6] These are marks that wouldn’t be left behind if the goal had simply been to obtain meat. This timing lines up closely with what lice research suggests about the origin of clothing — two entirely different lines of evidence converging on a similar window of time.

Cutting and skinning alone aren’t enough to turn hide and fur into clothing — the pieces also need to be sewn together into a shape that fits the body. At Sibudu Cave in South Africa, a bone needle emerged from a layer dated to roughly 61,000 years ago, and wear patterns examined under a microscope showed it had been used to pierce holes in hide. Earlier still, Blombos Cave yielded stone tools used for processing hide, from a layer dated to roughly 90,000 to 105,000 years ago.^[7] The hide itself is long gone, but the traces of the hands that worked and stitched it remain preserved in bone. The separate story of how leather and fur footwear developed is substantial enough to warrant its own treatment and isn’t covered here — the history of shoes is explored in a separate article.

Wool — a Fiber Wild Sheep Never Had

One fact about wool runs against intuition. The thick, soft wool we know today never existed on wild sheep. Wild sheep grew a double coat: coarse, thick guard hairs on the outside, with short, fine down underneath.^[8] This structure was effective for insulation, but poorly suited to being spun into thread and woven into cloth. The smooth, uniform wool we know today didn’t arise spontaneously in the wild — it’s the result of thousands of years of humans selectively breeding for specific traits.

Sheep were first domesticated roughly 10,000 to 12,000 years ago, in what’s known as the Fertile Crescent, stretching from what is now southeastern Turkey to Iran.^[8] But at the time, people kept sheep for meat and milk, not wool. Breeding aimed specifically at fiber began much later. Archaeological research shows that the shift in the ratio of guard hair to down — the change toward traits resembling today’s wool — appeared during the late Neolithic period, as people began favoring and selecting for particular traits, and actual traces of woven wool textiles don’t show up until the Bronze Age.^[8] White wool, in turn, didn’t become widespread until the even later Iron Age.^[8] In short, there was a gap of at least several thousand years between “the domestication of sheep” and “the emergence of sheep bred for wool.” People first kept sheep simply to eat, and it took far longer for them to recognize and selectively breed the individuals whose coats were actually usable as thread.

What this fact tells us is simple. Wool isn’t a material nature handed to humans — it’s something humans drew out of the sheep’s body over countless generations. Behind the soft wool that lets us knit a sweater today lies an accumulation of choices repeated, generation after generation, by countless shepherds whose names were never recorded.

Silk — Turning an Insect’s Secretion into Cloth

Silk is made in a way unlike any other fiber. It doesn’t come from a plant stem or an animal’s coat, but from unraveling the thread that a silkworm — the larva of the silk moth — spins to build its cocoon. China was the first place to work with this unusual material.

Exactly when silk first appeared depends on the kind of evidence being considered. For a long time, scholars regarded textile traces roughly 5,000 years old as the oldest known evidence. But in 2016, a joint Chinese-American research team conducted a precise analysis of soil samples taken from three Neolithic tombs at the Jiahu site in Henan Province, China, and detected traces of fibroin — the protein that makes up silk — in two of them.^[9] These tombs date to roughly 8,500 years ago, more than 3,000 years earlier than the previously known oldest silk evidence. This discovery, however, differs in character from the flax fibers or the hide-working tools discussed earlier, since no actual thread or cloth fragments survived — only chemically detected traces of protein molecules. The same tombs also contained loosely woven tools and bone needles, supporting the possibility that people at the time already had basic weaving and sewing skills.^[9]

Silk is remarkable for another reason: its production technology stayed confined to a single region for an unusually long time. Sericulture — raising silkworms and reeling their thread — barely leaked beyond China’s borders for millennia, and as a result, an unusual trade pattern emerged in which only the finished silk itself, not the technique for making it, moved across the continent. That trade route would later be given the name “the Silk Road.” The technology itself wasn’t transmitted elsewhere until much later. In this sense, silk is also an unusual case in which the origin of the material and the spread of the technology to produce it were separated by a striking span of time.

Cotton — Four Independent Inventions That Never Knew of One Another

The most remarkable thing about the history of cotton isn’t the story of any single place — it’s the fact that this discovery was made independently, on four separate continents, a total of four times. Among the plants in the genus Gossypium, humans domesticated exactly four species as fiber crops. And these four species are the result of people who never met one another, taming cotton independently in four separate places.

In the Old World, two different species were domesticated separately in South Asia and Africa: cotton cultivated primarily in India (Gossypium arboreum), and another species (Gossypium herbaceum) that appears to have branched off from a wild relative native to southern Africa.^[10] Genetic analysis shows that the common ancestor of these two species diverged at least several hundred thousand years ago — potentially as far back as 2.5 million years ago.^[10] Since agriculture didn’t begin until roughly 10,000 years ago, these two species had already split long before any human hand touched them. In other words, both cottons were cultivated by people in South Asia and Africa who separately recognized and selected two wild plants that had already existed apart from each other for a very long time.

The same thing happened twice more in the New World, though the ancestry of American cotton is a bit more complicated. Long ago in the Americas, two ancestral species with different chromosome structures — one from an Asian/African lineage, the other native to the Americas — naturally hybridized, and today’s two New World cotton species descend from that hybrid lineage. One is Gossypium hirsutum, shown to have been domesticated independently at multiple locations within Mexico,^[11] and the other is Gossypium barbadense, believed to originate from the northern coast of Peru.^[12] These two locations are thousands of kilometers apart, and there’s no evidence that these two pre-Columbian civilizations were in direct contact.

The archaeological evidence for when Peruvian cotton came into human hands is remarkably early. Cotton seeds from the Ñanchoc Valley in northern Peru have been radiocarbon-dated to roughly 7,800 years ago,^[13] and at the Huaca Prieta site on Peru’s northern coast, a roughly 6,000-year-old cotton textile fragment was found dyed with indigo blue.^[14] Seeds, woven cloth, and even dyeing technology — together, this evidence shows that people in this region had moved well beyond simply gathering cotton, and had long been cultivating and processing it systematically.

In the end, humanity, without any of these groups ever knowing the others existed, arrived at the same goal — fiber for clothing — by reaching for the same plant genus at four separate points on the globe. That’s too precise a convergence to write off as coincidence. It suggests instead that cotton itself, with its seeds wrapped in a fluffy fiber structure, may simply have been unusually easy for the human eye to recognize as a fiber resource. The fact that people on different continents looked at the same material and arrived at the same conclusion also tells us just how distinct and recognizable cotton’s potential as a fiber must have been.

The Limits of What Nature Alone Could Give

Across hide and fur, flax, wool, silk, and cotton — five materials in all — not one of them was handed to humans by nature as a finished product. Hide had to be skinned and worked. Wool was a trait that never existed in wild sheep, created only through thousands of years of breeding. Cotton had to be independently recognized and domesticated by people on opposite sides of the planet. To describe the history of cloth as simply a process of discovering materials that nature had hidden away tells only half the story. What actually happened was that humans took hold of raw materials from the wild and, over long stretches of time, reshaped those very materials to fit their own needs.

English preserves a linguistic trace of this same hand-labor. Well into the seventeenth century, “spinster” simply meant a woman whose occupation was spinning fiber into thread — a trade so overwhelmingly done by unmarried women that English legal documents eventually adopted it as the standard designation for any unmarried woman, a usage that lingered long after hand-spinning had vanished from most households.^[15] The word survives in everyday English today, almost entirely stripped of the craft that once defined it — a small fossil of just how much human hand-labor once stood between raw fiber and a usable thread.

But there was a natural limit to all of this. However much selective breeding was applied, there was a ceiling on how much wool a sheep’s body could produce, and a ceiling on the land and climate where cotton could grow. Silkworms eat only mulberry leaves, which placed a clear cap on how much sericulture could scale. The total amount of natural fiber available to humanity was, in the end, bound by the biological limits of plants and animals. So what did humans do once they hit that ceiling? First they took the work of spinning out of human hands and handed it to machines. Then, eventually, they set about manufacturing thread that nature had never made at all.

Next: Part 2: From Nature’s Thread to Human-Made Fiber