How similar were political systems and identities under the Zhou/Qin dynasties and the Roman Empire? Why did China tend towards unification, while Europe stayed divided?

by normie_sama

On the other hand, did it stay divided? Did structures like the Catholic Church and Holy Roman Empire represent a credible continuation on the Roman Empire and what it represented to its populace? Could we say that there were parallel developments in a "national empire" of the Han Chinese and a "religious empire" of Western Christendom?

voyeur324