In this Part 2 episode, we leave pre-history behind and look at Xinjiang's importance during the Qin and Han dynasties. Here is where the Han Chinese interaction with these lands far to the west began. Though a good portion of today's episode doesn't actually take place in Xinjiang, the story of the Yuezhi, Xiongnu, Zhang Qian, and the rise of Han Dynasty China is central to everything that follows later.