Chinese gender predictor charts or calendars were reportedly discovered in a royal tomb in Beijing more than 700 years ago. Today, the original chart is displayed at the Beijing Institute of Science.

According to legend, the original Chinese gender prediction manuscript was buried in a royal tomb in China over 700 years ago. You can now find it on display at the Beijing Institute of Science or ...

Chinese gender predictors have a long history, but how accurate are they? Here's what to know about predicting your baby's sex. Chinese gender predictors have a long history, ...