Tarim mummies

The Tarim mummies are a series of mummies discovered in the Tarim Basin in present-day Xinjiang, China, which date from 1800 BC to the first centuries BC. The mummies, particularly the early ones, are frequently associated with the presence of the Indo-European Tocharian languages in the Tarim Basin, although the evidence is not totally conclusive and many centuries separate these mummies from the first attestation of the Tocharian languages in writing. Victor H. Mair's team concluded that the mummies are Caucasoid, likely speakers of Indo-European languages such as the Tocharians.
Archaeological record.
At the beginning of the 20th century, European explorers such as Sven Hedin, Albert von Le Coq and Sir Aurel Stein all recounted their discoveries of desiccated bodies in their search for antiquities in Central Asia. Since then, numerous other mummies have been found and analyzed, many of them now displayed in the museums of Xinjiang. Most of these mummies were found on the eastern end of the Tarim Basin (around the area of Lopnur, Subeshi near Turpan, Loulan, Kumul), or along the southern edge of the Tarim Basin (Khotan, Niya, and Cherchen or Qiemo).
The earliest Tarim mummies, found at Qäwrighul and dated to 1800 BCE, are of a Caucasian physical type whose closest affiliation is to the Bronze Age populations of southern Siberia, Kazakhstan, Central Asia, and the Lower Volga.
The cemetery at Yanbulaq contained 29 mummies which dated from 1100–500 BCE, 21 of which are Mongoloid—the earliest Mongoloid mummies found in the Tarim Basin—and eight of which are of the same Caucasian physical type as found at Qäwrighul.
Notable mummies are the tall, red-haired "Chärchän man" or the "Ur-David" (1000 BCE); his son (1000 BCE), a small 1-year-old baby with brown hair protruding from under a red and blue felt cap, with two stones positioned over its eyes; the "Hami Mummy" ("c." 1400–800 BCE), a "red-headed beauty" found in Qizilchoqa; and the "Witches of Subeshi" (4th or 3rd century BCE), who wore black felt conical hats with a flat brim. Also found at Subeshi was a man with traces of a surgical operation on his abdomen; the incision is sewn up with sutures made of horsehair.
Many of the mummies have been found in very good condition, owing to the dryness of the desert and the desiccation it produced in the corpses. The mummies share many typical Caucasian body features (tall stature, high cheekbones, deep-set eyes), and many of them have their hair physically intact, ranging in color from blond to red to deep brown, and generally long, curly and braided. Their costumes, and especially textiles, may indicate a common origin with Indo-European neolithic clothing techniques or a common low-level textile technology. Chärchän man wore a red twill tunic and tartan leggings. Textile expert Elizabeth Wayland Barber, who examined the tartan-style cloth, discusses similarities between it and fragments recovered from salt mines associated with the Hallstatt culture. As a result of the arid conditions and exceptional preservation, tattoos have been identified on mummies from several sites around the Tarim Basin, including Qäwrighul, Yanghai, Shengjindian, Shanpula (Sampul), Zaghunluq, and Qizilchoqa.
It has been asserted that the textiles found with the mummies are of an early European textile type based on close similarities to fragmentary textiles found in salt mines in Austria, dating from the second millennium BCE. Anthropologist Irene Good, a specialist in early Eurasian textiles, noted the woven diagonal twill pattern indicated the use of a rather sophisticated loom and said that the textile is "the easternmost known example of this kind of weaving technique."
Genetic studies.
In 1995, Mair claimed that "the earliest mummies in the Tarim Basin were exclusively Caucasoid, or Europoid" with east Asian migrants arriving in the eastern portions of the Tarim Basin around 3,000 years ago while the Uyghur peoples arrived around the year 842. In trying to trace the origins of these populations, Victor Mair's team suggested that they may have arrived in the region by way of the Pamir Mountains about 5,000 years ago.
Mair has claimed that:
In 2007 the Chinese government allowed a National Geographic Society team headed by Spencer Wells to examine the mummies' DNA. Wells was able to extract undegraded DNA from the internal tissues. The scientists extracted enough material to suggest the Tarim Basin was continually inhabited from 2000 BCE to 300 BCE and preliminary results indicate the people, rather than having a single origin, originated from Europe, Mesopotamia, Indus Valley and other regions yet to be determined. 
A 2008 study by Jilin University showed that the Yuansha population has relatively close relationships with the modern populations of South Central Asia and Indus Valley, as well as with the ancient population of Chawuhu.
Between 2009–2015, the remains of 92 individuals found at the Xiaohe Tomb complex were analyzed for Y-DNA and mtDNA markers. Genetic analyses of the mummies showed that the maternal lineages of the Xiaohe people originated from both East Asia and West Eurasia, whereas the paternal lineages all originated from West Eurasia.
Mitochondrial DNA analysis showed that maternal lineages carried by the people at Xiaohe included mtDNA haplogroups H, K, U5, U7, U2e, T and R*, which are now most common in West Eurasia. Also found were haplogroups common in modern populations from East Asia: B5, D and G2a. Haplogroups now common in Central Asian or Siberian populations included: C4 and C5. Haplogroups later regarded as typically South Asian included M5 and M*.
Of the paternal lines of male remains surveyed nearly all – 11 out of 12, or around 92% – belonged to Y-DNA haplogroup R1a1, which are now most common in Northern India and Eastern Europe; the other belonged to the exceptionally rare paragroup K* (M9). The R1a1 lineage suggests a proximity of this population with groups related to the Andronovo culture, i.e. early Indo-Europeans.
The geographic location of this admixing is unknown, although south Siberia is likely.
Chinese historian Ji Xianlin says China "supported and admired" research by foreign experts into the mummies. "However, within China a small group of ethnic separatists have taken advantage of this opportunity to stir up trouble and are acting like buffoons. Some of them have even styled themselves the descendants of these ancient 'white people' with the aim of dividing the motherland. But these perverse acts will not succeed." Barber addresses these claims by noting that " is scarcely closer to 'Turkic' in her anthropological type than she is to Han Chinese. The body and facial forms associated with Turks and Mongols began to appear in the Tarim cemeteries only in the first millennium BCE, fifteen hundred years after this woman lived." Due to the "fear of fuelling separatist currents", the Xinjiang museum, regardless of dating, displays all their mummies, both Tarim and Han, together.
Posited origins.
Mallory and Mair (2000) propose the movement of at least two Caucasian physical types into the Tarim Basin. The authors associate these types with the Tocharian and Iranian (Saka) branches of the Indo-European language family, respectively. However, archaeology and linguistics professor Elizabeth Wayland Barber cautions against assuming the mummies spoke Tocharian, noting a gap of about a thousand years between the mummies and the documented Tocharians: "people can change their language at will, without altering a single gene or freckle."
B. E. Hemphill's biodistance analysis of cranial metrics (as cited in and ) has questioned the identification of the Tarim Basin population as European, noting that the earlier population has close affinities to the Indus Valley population, and the later population with the Oxus River valley population. Because craniometry can produce results which make no sense at all (e.g. the close relationship between Neolithic populations in Ukraine and Portugal) and therefore lack any historical meaning, any putative genetic relationship must be consistent with geographical plausibility and have the support of other evidence.
Han Kangxin, who examined the skulls of 302 mummies, found the closest relatives of the earlier Tarim Basin population in the populations of the Afanasevo culture situated immediately north of the Tarim Basin and the Andronovo culture that spanned Kazakhstan and reached southwards into West Central Asia and the Altai.
It is the Afanasevo culture to which trace the earliest Bronze Age settlers of the Tarim and Turpan basins. The Afanasevo culture ("c." 3500–2500 BCE) displays cultural and genetic connections with the Indo-European-associated cultures of the Eurasian Steppe yet predates the specifically Indo-Iranian-associated Andronovo culture ("c." 2000–900 BCE) enough to isolate the Tocharian languages from Indo-Iranian linguistic innovations like satemization.
 confirm a second Caucasian physical type at Alwighul (700–1 BCE) and Krorän (200 CE) different from the earlier one found at Qäwrighul (1800 BCE) and Yanbulaq (1100–500 BCE):
Mallory and Mair associate this later (700 BCE–200 CE) Caucasian physical type with the populations who introduced the Iranian Saka language to the western part of the Tarim basin.
From Libby Rosof (1997) "Penn Researcher Finds Chinese Mummies’ Surprising Roots":