...new finds are forcing a re-examination of old Chinese books that describe historical or legendary figures of great height, with deep-set blue or green eyes, long noses, full beards, and red or blond hair. Scholars have traditionally scoffed at these accounts, but it now transpires that these accounts were correct.
"From the evidence available, we have found that during the first 1,000 years after the Loulan Beauty, the only settlers in the Tarim Basin were Caucasoid.” East Asian peoples only began showing up in the eastern portions of the Tarim Basin about 3,000 years ago, Mair said.
The Mongol leader Temujin (AD 1167-1227), better known by his title Genghis Khan (Universal Ruler), was a man of strongly Nordic racial ancestry. According to the Persian historian Ab ul Ghasi, the tribal clan to which Temujin belonged, were known as the Bourchikoun (Grey-Eyed Men).
The ancestral mother and founder of this clan was known as Alan goa (beautiful Alan).
According to the Mongol and Chinese legends on the subject, she was said to have been visited in her tent by a divine being, who possessed golden hair, a fair complexion and grey eyes. Shortly after this visitation, she gave birth to the first member of the Bourchikoun clan.
Temujin himself was noted in Chinese descriptions of him, for his tall stature and heavy beard. We should also note the following depiction of Temujin's appearance, as given by Harold Lamb, in his biography of the great Khan:
"He must have been tall, with high shoulders, his skin a whitish tan. His eyes, set far apart under a sloping forehead, did not slant.
And his eyes were green, or blue-grey in the iris, with black pupils. Long reddish-brown hair fell in braids to his back."
https://atlanteangardens.blogspot.com/2014/05/china-finds-pyramid-in-ancient-tomb.html?m=1.