The mausoleum of Qin Shihuang has a history of more than 2000 years. Why was it not discovered until 1974?

Because it was hidden deep before, there were many institutions and many animals. Liu Bang's army first entered the Guanzhong area and arranged for people to protect Qin Shiwang's mausoleum. When Xiang Yu defeated Yong Wang at that time and entered Guanzhong, he found that Liu Bang had entered before him. At that time, Liu Bang took the initiative to withdraw from Guanzhong, but everyone knew that Xiang Yu had a good face, so he insisted that his 300 thousand soldiers burn most of the ground buildings of Qin Shihuang's mausoleum from east to west, regardless of his subordinates' obstruction. Moreover, it took 300,000 people to dig the mausoleum of the First Qin Emperor, but not many people were useful. So Qin Shihuang's underground palace was discovered, but there were many strange animals in it, and the casualties of the Chu army were terrible, so Xiang Yu had to give up the excavation of the mausoleum, and Qin Shihuang's mausoleum escaped smoothly.

Liu Bang established the Han Dynasty, specially arranged people to guard the Mausoleum of Qin Shihuang, and no one dug up the Mausoleum of Qin Shihuang, so it has been preserved to this day. During the period of 1974, when several farmers were digging wells, they found the Terracotta Warriors and Horses of Qin Shihuang Mausoleum, which had long been forgotten by people. The principle is that it is difficult for the huge sealed soil layer to pass through the sealed soil in the upper part of Qin Shihuang's mausoleum. The original gundam 120 meters, and the bottom area of sealing soil reached 250,000 square meters. There is a solid rammed soil layer around the underground palace of Qin Shihuang's mausoleum, such as a copper wall and an iron wall, and there is also a solid rammed soil layer, namely the palace wall of the underground palace of Qin Shihuang's mausoleum. The length of the palace wall is about 168m from east to west, 14 1m from north to south, 16m from south and 22m from north. This rammed earth palace wall is very strong.

The rammed earth palace wall of Qin Shihuang's mausoleum is insurmountable. The outer wall of Qin Shihuang's underground palace is made of copper directly to prevent water from entering. Luoyang shovel of grave robbers, for these? Iron wall? Naturally, there is no way. Mercury volatiles can cause death. According to historical records, in the underground palace of Qin Shihuang's mausoleum, mercury was used to simulate rivers, lakes and oceans in the world.

The Terracotta Warriors and Horses in the Mausoleum of the First Qin Dynasty are cultural treasures left by our ancestors, which are helpful for us to study the history and humanities of the Qin Dynasty. The Mausoleum of the First Qin Emperor is the most mysterious mausoleum in China, and there are also many unsolved mysteries. At that time, Qin people set up many organs to prevent grave robbery, thanks to Liu Bang's arrangement to protect historical treasures and Xiang Yu's burning of ground buildings, but it was not timely, timely and harmonious.