Dingling is the only tomb excavated in the Ming Tombs, but all the tombs are well preserved except Dingling, which was excavated by Guo Moruo. At that time, Guo Moruo proposed to dig a mausoleum, and many people said that they would stop it. After all, the technology at that time was not very developed, but he didn't listen. He took a group of people into the ancient tomb, but all the cultural relics in Dingling were annihilated by fly ash.
Guo Moruo began to dig Dingling in 1956, and the archaeological team entered the tomb smoothly. The calligraphy, painting and jewelry inside are shocking, but due to the age, many cultural relics immediately turned to ashes. Many people in the society are very uncomfortable with this kind of behavior, so please ask to suspend the plan. At that time, they told the Prime Minister that they would not make mistakes, but they reneged. The Prime Minister was very angry and suspended the operation.
We could have analyzed these cultural relics and got many historical mysteries, but now we can't. Before that, Guo Moruo wanted to dig the tombs of Wu Zetian and Judy, and Dingling was exactly what he wanted to practice. But this time, the training was a great failure, and all their illusions about excavating the imperial tomb were shattered.
Therefore, the state banned the excavation of the emperor's tomb because of this major archaeological tragedy, and Guo Moruo was extremely conceited with his extremely high attainments, which led to this corrupt situation. Since then, although the country has not explicitly stipulated this article, no one dares to dig any more. After all, the price is too high. Nobody wants to be a historical sinner like Guo Moruo.