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History and Background of the ancient Chinese Gender Chart

Throughout the history of China, the Chinese prefer baby boy. The reason is simple - males are stronger than females on average, at least physically!

China is an agricultural country traditionally. In ancient Chinese society, more boys meant they could help their families to do more heavy duties in farm. As a result, they could make more money. Girls, on the other hand, should stay at home until they reached sixteen or seventeen, during which time they were little more than an expense. They were then taken to their husbands' home and their own families had no further control their life or conduct. This through many years and centuries has generated in the popular mind a feeling that it is "bad business raising girls for other people,"

The ancient Chinese Gender Chart is used to predict and select the sex of baby. According to legend, the chart was invented at the beginning of the Qing dynasty (1644~1912), with the help of I Ching which includes the Yin and Yang1, the Five Elements2 and the Eight Trigrams3. The fact that the chart was found at the tomb of an emperor in last century did not really surprise historians, as gender selection for sons were extremely important for the ancient Chinese emperors.

The original copy is now in the Institute of Science in Beijing, and because of its high accuracy, it is getting more attention from both western and eastern world.


Notes:

Yin Yang
Yin and Yang
1. Yin and Yang are relative concepts based in ancient Taoism. They represent the nature of opposites: Yin is dark and inward moving, whereas Yang is bright and outward moving. Some of the common Yin and yang pairs are ‘moon and sun’, ‘night and day’, ‘female and male’, ‘ground and sky’, as well as ‘winter and summer’. The dynamic nature of Yin and Yang is within all things. Nothing is purely Yin or purely Yang. Because they are in constant transformation from one to the other, there is always some Yang within Yin and some Yin within Yang. The opposition and transformation of Yin and Yang are considered the spark of life.

five elements
Five Elements
2. The Five Elements are metal, wood, water, fire and earth. The theory of five elements identifies two systems, a generating system and an overcoming system. These two systems conclude that each element can enhance one of the other four elements, and can be weakened by one of the other elements. As everything in the universe belongs to one of the elements, these two systems keep everything in the universe in balance and harmony.

eight triframs

Eight Trigrams
3. The Eight Trigrams contain eight groups of bars. Each group contains three levels of Yin bar (broken bar) and Yang bar (unbroken bar). The relationships between the trigrams are represented in two arrangements, ‘Earlier Heaven’ and ‘Later Heaven’. The eight trigrams represent the eight basic natural elements: water, fire, thunder, heaven, earth, wind, mountain, and lake. They depict how natural elements are formed out of the duality of Yin and Yang.