Methods of Predicting Baby\’s Gender by Zhouyi The Zhouyi is a divination theory in ancient China, also known as the \”Book of Changes\”. It has been an important tool for Chinese people to make divination predictions for thousands of years, and is also widely used by mothers to predict the gender of their babies. Below, we will introduce to you Zhouyi\’s method of predicting baby\’s gender from four aspects. Orientation calculation: Calculation of monthly orders. Monthly orders refer to the monthly solar terms, thus calculating