Ancient Chinese birth charts are among the oldest natural gender prediction and sex selection methods for yet-to-be-born children. This seven thousand year old instrument has been devised by the Chinese with the use of lunar months, hence its other name, the Chinese “Lunar” Birth Chart. A Chinese scientist has discovered this useful archeological find in a tomb near Beijing seven hundred years ago and the original ancient Chinese birth chart now lies at the Beijing Institute of Science.
It is not surprising for the Chinese to come up with ancient Chinese birth charts to predict the sex of their children before birth. Traditionally and throughout history, the Chinese preferred the birth of sons instead of daughters. This is because, in ancient Chinese agricultural society, more sons meant more farmhands in the fields and this brought in more yield and more money. The girls stayed at home until they have reached a marriageable age which is around sixteen or seventeen years old. According to Chinese custom, it was only the males who could inherit ancestral properties, carry about with farm duties and manage the family business; therefore, the Chinese have this belief that “It is bad business raising girls for other people.” Because of their preference for sons over daughters, the Chinese have come up with ancient Chinese birth charts to predict and control the gender of their unborn children through the phases of the moon.
Generally, the ancient Chinese birth chart is based on the Lunar Calendar which indicates dates according to the phases of the moon. One lunar month equals the amount of time it takes for the moon to complete its phases. This time period is made up of twenty-nine and a half days, making a lunar year eleven days shorter than our usual solar or Gregorian year, which is three hundred and sixty days.
There is a little bit of scientific logic at work with the use of ancient Chinese birth charts. Some experts believe that a woman’s acidic secretions help determine the sex of the baby and that these acidic secretions change from lunar month to lunar month dependent on the woman’s age. It wasn’t until the 1950’s that Dr. Eugen Jonas, a Czech gynecologist, put the validity and reliability of ancient Chinese birth charts to the test. He carried out scientifically-controlled experiments on women who use this astrological method. It turns out that the test came up with ninety-eight percent significance. The specific findings of the test are: (1) that the time of a woman’s fertility depends on the recurrent angle of the sun and moon at the woman’s own birth; (2) that the sex of the child also depends on the position of the moon at the moment of conception and (3) that specific planetary conditions or configurations at this moment of conception can effect a woman’s fertility and the viability of the embryo. These findings prove that, indeed, ancient Chinese birth charts can predict an unborn child’s sex and that this could be used to plan a child’s sex.
Many critics still question the validity and reliability of Chinese gender chart, earmarking the effectiveness of these charts at fifty percent significance, equivalent to just flipping a coin. Still, proponents of ancient Chinese birth charts claim ninety-three to ninety-nine percent validity and reliability, at the most, with the proper use of the techniques behind Chinese gender calendar.