After Qin Shi Huang unified the Six Kingdoms, on the one hand, he began to unify the writing and weights and measures to facilitate the rule of the whole country; on the other hand, he built a large number of civil engineering, such as the construction of the Great Wall, etc., and the purpose of these projects was to resist foreign invasion or to link the whole country. In fact, in addition to the famous "big strokes" such as the Great Wall and Afang Palace, Qin Shi Huang also built a "highway", which although not very famous, played a very big role in history. This highway is the Qin Straight Road, which departs from Xianyang and passes through shaanxi, Gansu and Inner Mongolia on the mainland, with a total length of more than 700 kilometers. And it is worth mentioning that this road has a history of more than 2,000 years, but it still has no grass, why is this?
After Qin Shi Huang unified the country, in order to better contact with the outside world, he asked Meng Tian to build a Qin straight road, the main purpose of which was to communicate with other countries on the one hand, and to resist the invasion of the Xiongnu on the other hand. At that time, Qin Guiding used very advanced tamping technology, the soil used to build was screened layer by layer, and all the soil was fired at high temperatures, so it was impossible for any seeds doped in the soil to survive. Moreover, the roadbed of the Qin Straight Road was also very strong, so after its completion, this road soon became the lifeblood of the connection between the Central Plains and the north, and it also became the most level road at that time.
After the fall of the Qin Dynasty, the Qin Straight Road also continued to play a role for more than 2,000 years. During the Han Dynasty, Huo Wentai used it to transport grain and grass, and then in the Sui and Tang Dynasties, this road always played an important role, ensuring that the Northern Imperial Foreign Enemy was sufficient. It was not until the late Qing government that this road gradually lost its role, but in the War of Resistance Against Japan, the Qin Straight Road was once again rejuvenated and became an important channel for the transportation of anti-Japanese materials.
It is precisely because this road has not been abandoned, so most of the QinZhi Road has not grown grass. However, in addition to some areas that are often used, a small number of Qin Straight Road has already been covered with shrubs, so the saying that Qin Straight Road has not grown grass for more than 2,000 years is actually an exaggeration of people. But no matter what, Qinzhidao has a very thick cultural atmosphere and historical value, and it is precisely for this reason that it has also been listed as a national key cultural relics protection unit.