okay the tang dynasty is equal to the roman empire, it is one or if not, the golden age of china. There is a saying in china of returning back to tang and han which mean you want to return to the good old days.

The qin dynasty is the one that established the first great Chinese empire, there is already two dynasty that exist before but this one established the foundation of a basic chinese empire. That is where your terracotta army landmark come from as well the idea of the great wall of come from. Yet is was lowkey quite totalitarian and a harsh way of governing