"When thousands of years have passed, even if the bones are turned into ashes, even if the Qin tiles do not exist, the people will sing your praises, and the annals of history will record you, because you are the first and the only one", after more than two thousand years, Qin Shi Huang is still "alive" in the hearts of the people, and most people are "tyrannical" in their hearts for Qin Shi Huang.
The Chronicle of History, Vol. 121, The Biography of Ru Lin lie records: "In the Ji Dynasty of Qin, the burning of poetry books, pit warlocks, and the six arts have been lacking", the burning of books and pits of Confucianism has always been the evaluation of Qin Shi Huang by later generations, but in some records that are different from the "Zhengshi", Qin Shi Huang pit is a warlock, burning alchemy books.
Qin Shi Huang's negative statements are different, but his merits can be said to be "no one before and after the ancients", just a highway, it has gone through more than two thousand years without grass, as we all know, where there is land, there will be grass and trees, even the harsh desert will grow drought-tolerant plants, so why can the Qin Straight Road built by Qin Shi Huang not grow grass for two thousand years?
Qin Zhidao was built by Qin Shi Huang's order Meng Tian to lead 300,000 troops, and regarding the construction time, it is recorded from the "History of Qin Shi Huang Benji" from the thirty-fifth year of Qin Shi Huang (212 BC), which is mentioned in some records of the Han Dynasty and Tang Dynasty, which is certain.
However, after checking through the "Records of History", in addition to the place and mileage of the Qin ZhiDao recorded by Sima Qian, it is impossible to find the specific place of passage between Yunyang and Jiuyuan, but in the Tang Dynasty's "Chronicle of The Land" and the "Yuanhe County Map" written by Li Jifu in the late Tang Dynasty, it is also said: Qin Gu Dao, in the meridian mountain of the eighty miles east of the county, the first emperor arrived in Yunyang in the thirty-fifth year, that is, this dao.
Qin Shi Huang built this Qin Straight Road to prevent and prevent the invasion of the Xiongnu nobles in the northern kingdom, and after two years, 300,000 soldiers of Mengtian built a military passage of more than 700 kilometers from the south to the Linguang Palace in Shaanxi and the Jiuyuan County of Baotou in Inner Mongolia in the north.
The Qin Straight Road not only became the foundation for the Qin Dynasty to unify the north and south, but also a forward front for the Western Han Dynasty to resist the Xiongnu, the nomadic people generally took the river valley to the south, but there was a straight road on the Meridian Ridge, which could directly take the xiongnu key points, and even if the Xiongnu could control and occupy the Yin Mountains and hetao area, they did not dare to occupy it for a long time.
In the Tang Dynasty, the Turks repeatedly went south to Guanzhong, when Tang Taizong, 100,000 iron horses went straight to the bank of the Wei River, straight to Chang'an, the Tang Dynasty used the Qin Straight Road to communicate with the northern armies and towns, and at the same time carried out a counterattack, after 2000 years of stampede, why is the Qin Straight Road still so strong?
In the era when there was no concrete, it was very difficult for craftsmen to repair a road, but after repeated testing by craftsmen, they finally found a solution, that is, the soil used to build the road was thoroughly roasted, or fired, and then mixed with saline and limestone, and then compacted with loess, so that it was quite strong and changed the soil.