In the old society, there were many taboos in folk customs, such as "No shaving in the first month". In the first month of the summer calendar, although the boy's hair is crazy long, it can't be violated at all, otherwise it will be bad for my uncle. "I shaved my head in the first month and died." What a terrible responsibility. My uncle's safety depends on his nephew's head. It was not until the second day of February in the summer calendar that the boy was free to shave his head. But why is my nephew's hair related to my uncle's life? This requires a lot of thinking. Sociologists have verified that human beings are moving from matrilineal society to paternal society step by step. In the matriarchal clan society where women have the final say, uncle, as an important representative of the family, can not be underestimated naturally; There is also a saying that after the Qing army entered the customs, in order to maintain the idea of "leveling the periphery and defending the Central Plains", it decided to implement a strange hairstyle: shaving the hair from the front to the top of the head, and then shaving all the hairlines around it, leaving only a long big braid in the middle. The Han people, who have experienced countless dynasties, don't care much about who is the emperor, but "the benefits of the body and skin, the benefits of parents, dare not hurt, and the beginning of filial piety." The policy of the Qing government was strongly resisted by the Central Plains, and the Qing government put forward the idea of "leaving the head without leaving the hair, leaving the hair without leaving the head". Under the pressure of the Qing government, some literati expressed their yearning for the Ming Dynasty by "not shaving their heads in the first month", which was really "homesickness". In order to hide their eyes and ears, they were called "dead uncles". "Thinking" becomes "death". How many people have suffered! "