Who Invented Silk? What's Known and What's Legend

Sometime between 4000 and 3000 BCE, someone in what is now Shanxi province, in northern China, cut a silkworm cocoon in half with a sharp blade. Nobody knows who or why, and that one object tells us more than the famous story about an empress and a cup of tea.

Who is credited with inventing silk?

Chinese tradition credits Leizu, the legendary wife of the Yellow Emperor, around 2700 BCE. In the version most people know, a cocoon drops into her tea, the hot water loosens it, and she draws out a single shining thread.

It's a good story, and a late one. Sima Qian's Records of the Grand Historian, from about 100 BCE, names Leizu as the emperor's principal wife and says nothing about silk. A Tang-era encyclopedia, the Tongdian, lists who received state offerings as the "First Sericulturist" from one dynasty to the next: an astral body linked to horses under the Zhou, two goddesses under the Han, the Yellow Emperor himself under the Northern Qi. Leizu arrives only under the Northern Zhou, in the sixth century CE, a shift the German sinologist Dieter Kuhn traced in a 1984 study. Song dynasty histories later state her role outright. The teacup appears to be later still. She's still honored in parts of China: a yearly rite at her temple in Yuan'an County, Hubei, is on the country's national list of intangible cultural heritage.

What is the oldest evidence of silk?

The oldest woven silk anyone has found dates to about 3630 BCE, at Qingtai in Henan province, where it wrapped the body of a child. That's nearly a thousand years before the date the legend gives Leizu. Other finds push the question back or sideways.

Find	Where	When	How firm
Silk protein traces in tomb soil	Jiahu, Henan	About 8,500 years ago	Possible. The 2016 study found very low levels and no direct dates from the tombs.
Cocoon cut in half	Xia County, Shanxi	4000–3000 BCE	One object, and hard to interpret.
Woven silk around a child's body	Qingtai, Henan	About 3630 BCE	The earliest known woven silk.
Silk threads from wild moths	Chanhudaro, Indus Valley	2450–2000 BCE	A separate tradition, using other silk moths.
Bombyx mori cocoons	Sapalli Tepe, Uzbekistan	About 2000 BCE	Radiocarbon dated directly, published in 2026.

The moth itself argues against a single inventor. Bombyx mori was bred from a wild species, Bombyx mandarina, with the earliest evidence of domestication more than 5,000 years old. A moth doesn't get domesticated in an afternoon.

Was silk invented only in China?

Farming the domesticated silkworm began in China as far as the evidence shows, though China wasn't the only place people used silk. The Indus Valley threads came from other moths. Then in July 2026, a team writing in Science Advances reported three Bombyx mori cocoons from a Bronze Age settlement in southern Uzbekistan, with mulberry charcoal beside them. Researchers had assumed silk farming reached the region nearly 2,000 years later. The team, whose corresponding author is Xinyi Liu of Washington University in St. Louis, concludes that silk farming had reached southern Central Asia by about 4,000 years ago, long before the Silk Road.

How did silk spread from China?

Silk traveled mainly as finished cloth at first, with commercial trade to the West beginning around the second century BCE, and the methods followed slowly. Two famous smuggling stories explain how: a princess hiding silkworm eggs in her headdress on her way to marry the king of Khotan, and monks carrying eggs to the emperor Justinian around 552. The American Historical Association treats such heists as legend rather than history, and our list of silk facts tells the princess's story. You'll also read that exporting silkworms meant death. We couldn't find a primary source for that, and the cocoons at Sapalli Tepe make a secret kept for thousands of years harder to believe.

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Whoever cut that cocoon never got a temple or a teacup. What's left is a clean edge, at least five thousand years old, and the plain fact that somebody wanted to see inside.

Frequently asked questions

Did Empress Leizu really invent silk?

There's no evidence she did. Leizu is a legendary figure dated to around 2700 BCE, and woven silk is older than that date. The earliest texts naming her don't mention silk, and records of state offerings suggest she was linked to silkworms only by about the sixth century CE.

How old is silk?

At least about 5,600 years old as woven cloth, based on silk found at Qingtai in Henan province and dated to about 3630 BCE. A 2016 study reported silk proteins in tomb soil at Jiahu from about 8,500 years ago, though its authors note the levels were very low and the tombs weren't directly dated.

Where was silk first made?

China, as far as the evidence shows, for silk from the domesticated silkworm. People in the Indus Valley were separately using silk from wild moths by about 2450 BCE. Bombyx mori cocoons dated to about 2000 BCE have been found in Uzbekistan, so silk farming left China earlier than once thought.

Was it illegal to take silkworms out of China?

Popular accounts say it was punishable by death, but we couldn't trace that claim to any primary source. It may be true. For now it's better treated as a story that gets repeated than as an established fact.

How did silk making reach Europe?

The usual story says two monks carried silkworm eggs to the Byzantine emperor Justinian around 552, hidden in hollow canes. Historians treat that account with caution. Whatever the details, silk production was established in the eastern Mediterranean in the centuries that followed.

Related reading: How Silk Is Made · What Is Mulberry Silk? · The Stories Behind Silk Scarves