Taoist texts can help deepen our understanding of early Chinese history because it shows us what China was like a long time ago and what the people believed in during that time.  The people of China believed in theocracy and that the celestial master would develop "Great Peace" where everyone is treated equally.  Even though there are no physical traces of Taoism, we can use that to develop the idea that they visualized their worship in their mind.  Taoism also helps us to understand early Chinese history because it shows us what they believed in.  Taoism is a religion and a way of life, which is what they followed.  This shows us that they "went with the flow" and believed that things happen for a reason.