CE. The excavated graves have produced a number of fabrics of felt, wool, silk and cotton and even a fine bit of tapestry, the Sampul tapestry, showing the face of Caucasoid man which was made of threads of 24 shades of color. The tapestry had been cut up and fashioned into trousers worn by one of the deceased. An Anthropological study of 56 individuals showed a primarily Caucasoid population. A study in 2010 showed that an Eastern Eurasian lineage common in Siberia dominates the mitochondrial DNA of the mummies from the Xiaohe Cemetery. Their Y chromosome is distributed throughout Eastern Europe, South Asia, Central Asia, and Siberia. There is a relative abundance of information on Hotan readily available for study. The main historical sources are to be found in the Chinese histories (particularly detailed during the Han and early Tang dynasties) when China was interested in control of the Western Regions, the accounts of several Chinese pilgrim monks, a few Buddhist histories of Hotan that have survived in Classical Tibetan and a large number of documents in the Iranian Saka language and other languages discovered, for the most part, early this century at various sites in the Tarim Basin and from the hidden library at the Mogao Caves near Dunhuang. Buddhist Khotan The ancient Kingdom of Khotan was one of the earliest Buddhist states in the world and a cultural bridge across which Buddhist culture and learning were transmitted from India to China. Its capital was located to the west of the modern city of Hotan. The inhabitants of the Kingdom of Khotan, like those of early Kashgar and Yarkant, spoke Saka, one of the Eastern Iranian languages. Khotan's indigenous dynasty (all of whose royal names are Indian in origin) governed a fervently Buddhist city-state boasting some 400 temples in the late 9th/early 10th century—four times the number recorded by Xuanzang around 630. The kingdom was independent but was intermittently under Chinese control during the Han and Tang Dynasty. After the Tang dynasty, Khotan formed an alliance with the rulers of Dunhuang. Khotan enjoyed close relations with the Buddhist centre at Dunhuang: the Khotanese royal family intermarried with Dunhuang élites, visited and patronized Dunhuang's Buddhist temple complex, and donated money to have their portraits painted on the walls of the Mogao grottos. Through the 10th century, Khotanese royal portraits were painted in association with an increasing number of deities in