the ruled the entire world under a single administration for a considerable amount of time.
As for our time now, I do agree that Romish culture has spread, at least in part, to places in China, albeit, not nearly as much as in other parts of the world, including ours. No quibbles about it being in China.
Would you also say that we could go back farther than Rome's time and say that we have been conqoured by Greece in a way as well, as Rome took what the Greeks began and did it more fully?