https://www.telegraph.co.uk/news/worldnews/asia/china/815449...
https://www.telegraph.co.uk/news/worldnews/asia/china/815449...
Further west along the silk road from Gansu, the earliest documented inhabitants of Xinjiang were the Tocharians. They had brown, red, or blond hair, spoke two different Indo-European languages (Tocharian A and B), and were Buddhist. They're a more likely source of blond hair in western China.
Quintili Vare, legiones redde! (Quintilius Varus, give me back my legions!)
Why not? As far as I am aware it is a legitimate and decent journalistic news source. It might have a political leaning, but for this sort of reporting I don't think it would give their preferred political party and leverage.
https://en.wikipedia.org/wiki/Battle_of_the_Teutoburg_Forest
Being blond haired and blue eyed doesn't mean much though since there are some non-European cultures where it exists. Solomon Islands people, and I've known blond Lebanese people, supposedly there are some blond north African people too.