It is said that because Ma Huanghou, the queen of Ming Taizu, was a commoner, folk women were later allowed to wear a hat badge when they got married, and this custom spread until the late Qing Dynasty.
"Bi Xia" originated from the costume of Taoist leaders in the Tang Dynasty. At that time, Taoist leaders used "getting off the iron" as their vestments. The emperor of the Tang Dynasty praised Taoism and told the women in the palace to wear robes. Later, with the changes of the times, the dress of government and civilian women before and after marriage has also changed. They wear silk before marriage and silk after marriage to distinguish whether women are married or not.