The secret was “revealed” causing posterity to take off their hats to admire the wisdom of the ancients
Qin Shi Huang (259 BC – 210 BC) was the 36th king of the Qin state. After destroying the six vassal states, he became the first emperor of a unified China and began to introduce reform policies in all aspects of the country, including building roads with the aim of establish a road network connecting the whole country.
Tan Chi Street is one of the outstanding historical works of that time built and respected by Qin Shi Huang. This is an arterial traffic route connecting the Great Wall of China with the Palace of Qin with a length of up to 800km.
The construction of this “highway” is also of great significance. From the perspective of the times, it was beneficial to strengthen the connection between the provinces in the Qin state, and at the same time, it was also beneficial for the king to rule the country and control the region. Not only was it beneficial in the era of Qin Shi Huang, in later dynasties, people’s travel and transportation of goods was also more convenient. Although the construction takes a lot of effort and money, in the long run, this route brings great benefits.
Today, this dirt road still exists. However, there is a special point in this road that causes later generations to have a “headache” to find a solution that is, although it has been built for more than 2000 years, it has no grass growing. This strange thing prompted archaeologists to step in to decipher the secret behind. They took soil samples and related data for research and analysis. Finally, the answer has also revealed the secret of a thousand years.
Experts said that, in addition to human factors and vehicles, the reason for the inability of plants to grow on this route is believed to be in the type of soil used to make the road.
According to legend, Qin Shi Huang had very high requirements for this path. In addition to being wide and flat, it must also be of a standard not to soften, mushy or become muddy on rainy days. This is probably related to Qin Shi Huang’s hope that the Qin Dynasty would be passed down from generation to generation and last forever.
A section of Qin Zhi Road did not have a single blade of grass growing. Photo: Sohu
At that time, there was no concrete, this is definitely a big test for the skill of the workers. Experts believe that in ancient times, workers used a special technique to construct the roadbed. They used earth that was baked through a fire before being mixed with salt and alkali, to create a special mixture, hard and tough like today’s concrete.
This heating caused the organic nutrients to be burned and lost, no longer a suitable environment for plants to exist and grow. In addition, the soil layer of this road has a thickness of 20 to 30 cm and is very compacted, which can insulate moisture and oxygen to a large extent.
Therefore, if a seed falls on the road, it will be difficult to take root and germinate. This structure is similar to the current road construction, after the road is completed, a roller will roll over to help flatten and compact the soil and materials. Modern archaeological excavations have also confirmed this.
The Qin Dynasty was more than 2000 years ago, at that time, everything was still very backward. In the context of relying only on human strength and rudimentary tools, the workers of this era have created great works that make the whole world admire such as Qin Chi Street, the Great Wall… until now still stable after thousands of years.
The construction of these works has also partly shown us the industriousness and wisdom beyond the times of the ancients. From another angle, the inventions and creations created by the people of the Qin Dynasty had a profound impact on the development of later dynasties.
(According to Sohu)
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