Before the Warring States Period, "Shu Ren" was a general term for nobles, and after the Warring States Period, Chu was a general term for civilians. Zheng Xuan, a "Li Qunren" in the Book of Songs "Ya Tianbao", wrote: "People have official surnames.
"Now refers to civilians, ordinary people. Also known as the "common people." The largest and most common group in society.
The dynasties and Warring States that Fang said implemented the abdication system were more important in the past, so they were called nobles and people with status, and later they were generally told to the general public.