The scientific basis of the Qing Palace Table The Qing Palace Table is an ancient method of predicting the gender of a pregnant woman\’s fetus. It originated from the court of the Ming and Qing Dynasties in my country. This method predicts the gender of the fetus based on the lunar age and due date of the pregnant woman, combined with information from the lunisolar calendar experienced by the daughter. It is said that the accuracy of the Qing palace watch is as high as 90%. So, what is the scientific basis for this high accuracy? First, this method is based on biological