This is pretty funny. Seems like you are desperate to establish the preeminence of Chinese civilization. This is what people who lack confidence do. China is one of the world's great civilizations for sure. You can have confidence in this without having to compare yourself to others. One can make Rome look larger or smaller than China depending on the time one chooses and what one chooses to measure. So what? In any case, the best measure of a civilization are its contributions to math, science, art, literature and philosophy. On these measures, Greece, tiny as it was, is as important as China or Rome.