Comparison between area of Afanasievo culture (IV millenium BCE) and Tarim culture (Tocharian culture - Ie millenieum CE). 
Afanasievo culture is possibly ancestor of Tocharian culture.
<a href="//commons.wikimedia.org/wiki/User:Christophe_cag%C3%A9" title="User:Christophe cagé">Christophe cagé</a> - based on <a href="//commons.wikimedia.org/wiki/File:Western_Regions_1st_century_BC_(ja).png" title="File:Western Regions 1st century BC (ja).png">File:Western Regions 1st century BC (ja).png</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>