What is the credibility of Dong Gong's date selection?

Dong Gong has no credibility in choosing the date. The mysterious disclosure of the credibility of Dong Gong's naming reference reveals how many naming secrets: why the five-grid naming method introduced by Japan is absurd and unreasonable, and how high the credibility of Dong Gong's choice of date is. This has puzzled China people for decades, and there is still an absurd origin of Chinese characters, which involves people with very reliable origins. In order to prove how mysterious and abstruse Ge China's Chinese characters are by reference price method, scammers will explain the inside story at the back of the post for your reference. What is the credibility and accuracy of Dong Gong's date selection? Just to promote the origin of Chinese studies, Dong Gong's naming revealed the inside story of the industry. Why is Dong Gong's date selection so accurate? Japan's five-grid naming method is ridiculous in deceiving people, and there are mysterious messages in Chinese characters. Is there any cultural treasure in China?