[Cronos]

A big shocker would be if they had red or blonde hair. What would the Chinese do?

Caucasians moved into China around that time, so these could have been the Aryan groups migrating out of Eastern Persia - Western India - Central Asia belonging to the Tocharian linguistic branch. The Western branches had moved out earlier and had established themselves in Anatolia around 2000 B.C. -- the hittites and the Mitanni.

[blam]

"Caucasians moved into China around that time, so these could have been the Aryan groups migrating out of Eastern Persia - Western India - Central Asia belonging to the Tocharian linguistic branch."

The Tocharian speakers were already there when the Iranians showed up. Incidently, the oldest paper ever found had Tocharian written on it.