text: The social structure of China has an expansive history which begins from the feudal society of Imperial China to the contemporary era.  There was a Chinese nobility, beginning with the Zhou dynasty.  However, after the Song dynasty, the powerful government offices were not hereditary. Instead, they were selected through the imperial examination system, of written examinations based on Confucian thought, thereby undermining the power of the hereditary aristocracy.
  Imperial China divided the country into four occupations or classes, with the emperor ruling over them. Throughout this time period, there were attempts to eradicate this system. Social mobility was difficult, or sometimes nearly impossible, to achieve as social class was primarily defined by an individual's identity. To rise required passing a very difficult written exam. The great majority failed, but for those who passed their entire family rose in status.