Exactly. Because most of us are Eurpoean in origin, we have a pretty good grasp of the history as it involves Europeans in that area.
Most are unaware that there is a equally interesting 'mix' on the other side of the Tarim Basin in China. The Han/Hakka/European mix migrated all the way from that region to southern China, Korea and Japan, where they encountered and mixed with the Ainu. (Some would say that they are the Ainu but, I believe the Ainu came across in an earlier wave.)
Hmmm, makes you wonder. Anyone else look at pictures of that seven foot something Chinese basketball player for Houston and see something faintly European (not just his height)?