Surname: a sign and symbol indicating a person's family blood relationship. German orientalist Max Miao Lei said in Dedication to Myth: A totem begins with the symbol of a clan totem, then the name of the tribe, and then the name of the clan ancestor. The first name here is actually the last name.
The original source of ancient surnames in China is primitive religious worship, totem worship and ancestor worship based on "Heaven". The so-called "heaven" is the law that everything has. Primitive totem worship is the root of China's ancient surnames. A large number of ancient documents support this view.
Surnames originate from the names of tribes or tribal leaders. Its main function is to distinguish the descendants of different clans in the tribe and facilitate intermarriage between different clans. Therefore, the appearance of surnames marks the change from group marriage system to consanguineous marriage system, which is an important milestone in the progress of human civilization.