Why Humans Started Wearing Clothes: The Archaeology Puzzle

Clothes are the most intimate technology humans ever adopted, yet they are also one of the hardest to trace. A widely read science explainer circulating on the Chinese question-and-answer platform Zhihu has laid out the puzzle in plain language: textiles rot, leather decays, and the earliest garments were probably simple wraps and capes that left almost nothing behind. So how do archaeologists actually put a date on the moment our ancestors first covered themselves?

The naive approach, as the piece puts it, is to go looking for clothes. Dig up a prehistoric fur cloak here, a set of winter remnants there, carbon-date every ancient garment in the world’s museums, and compare. The problem is that organic material survives only in rare conditions of cold, dryness or waterlogging. A handful of spectacular finds — such as the woven fragments and hide garments recovered from permafrost and desert graves — tell us what people wore in specific places, not when the habit began.

So researchers triangulate from several directions at once. One of the cleverest lines of evidence comes from body lice. Genetic studies suggest that clothing lice split from head lice at some point deep in prehistory, because clothing lice need fabric to live in. That divergence is generally placed somewhere around 100,000 to 170,000 years ago, offering a rough biological clock for when humans were regularly wearing something.

Bone tools point in a similar direction. Scrapers, awls and needles are the toolkit of hide preparation and tailoring. Awls appear early, but the eyed needle — the tool that makes fitted, layered clothing possible — shows up much later, in the Upper Paleolithic, and its arrival coincides with human groups pushing into colder latitudes. Climate records add a third constraint: the timing of glacial advances tells us when protection from cold stopped being optional.

The explainer also notes what the evidence does not show. There is no single “first shirt.” Different populations in different regions probably wrapped, draped and stitched at different times, and the practice may have flickered in and out with local conditions. What looks like one invention is more likely a long, uneven habit that eventually became universal.

Modern dating methods have sharpened the picture. Ancient DNA from lice, microscopic residues on stone tools, and cut marks on animal bones that reveal careful skinning rather than simple butchery all feed into the reconstruction. Even the shape of the human body has been drafted as evidence: some researchers argue that our relatively hairless skin and the distribution of body fat only make sense if we were routinely wearing something.

For readers outside archaeology, the appeal of the question is obvious. Clothing sits at the crossroads of biology, climate and culture — a daily habit so ordinary that we rarely ask when it started. The Zhihu piece treats it as a detective story, and the answer is satisfyingly human: not a flash of genius, but generations of small adaptations, stitched together across tens of thousands of years.