In ancient China, the Great Wall was an important military defense project that played a key role in defending against foreign invasions. However, some have questioned its practical effectiveness. An American professor even said: "The Great Wall of China has harmed European countries."
The origin of the Great Wall.
As the saying goes, "if you don't reach the Great Wall, you are not a hero", as one of the eight wonders of the world, the Great Wall has always been a majestic and majestic image. However, the Great Wall is not a majestic thing to be seen in ancient times, but a serious topic full of blood and tears.
In the legend of Meng Jiangnu crying on the Great Wall, a woman trekked to the foot of the Great Wall built by her husband and learned that her husband was exhausted and built into the Great Wall. Meng Jiangnu cried at the foot of the Great Wall for several days and nights, causing a landslide and cracking, revealing the heavy story behind the Great Wall.
The truth about the Great Wall.
Although the story of Meng Jiangnu adds some color, the true origin of the Great Wall can be traced back to the Western Zhou Dynasty. In the "Guanzi [gf]30fb[gf]light and heavy ding", it is recorded that the yang side of the Great Wall is the Lu country, and the yin side is the Qi country. During the Spring and Autumn period, King Xuan of Qi ordered the construction of walls along the border to defend against military attacks from neighboring countries.
The role of the Great Wall.
The construction of the Great Wall continued in different dynasties, from Qin Shi Huang to the fall of the Ming Dynasty and the fall of the Qing Kangxi. Why did the dynasties "obsess" with the construction of the Great Wall?
The key factor is to face the threat of foreign enemies from the northern steppes, such as the Xiongnu, Jurchen, etc. These nomads had highly qualified cavalry and were highly mobile, while the Central Plains were dominated by an agrarian culture. The existence of the Great Wall made it difficult for nomads to cross and maintained a stable life in the Central Plains.
The multiple roles of the Great Wall.
The role of the Great Wall is mainly reflected in three aspects: defending against foreign enemies, visually transmitting information and enhancing its own strategic advantage. First of all, the Great Wall blocked the invasion of nomads and ensured the security of the Central Plains. Second, the military information is transmitted through the beacon to achieve a rapid response. Thirdly, the height advantage on the Great Wall allowed the soldiers to skillfully use ** against the nomads and reduce their own consumption.
Whip of God. 
After discovering that the Central Plains was difficult to conquer, the nomads set their sights on Europe. This led to the invasion of the Xiongnu, Turkic and other peoples in the European region, and the European countries that finally collapsed faced the cruel fate of the "whip of God". The Great Wall of China may have changed the course of European history to a certain extent.
Epilogue. 
Although the architecture of the Great Wall attracts the world today with its majestic posture, its true role is much more than that. As an outstanding representative of ancient China's military defense, the Great Wall is like an impregnable barrier, maintaining peace and stability in the Central Plains. Its influence even transcended national borders and had a profound impact on the evolution of European history. The Great Wall of China is not only an architectural marvel, but also a symbol of ancient wisdom and perseverance.
The Great Wall: Beyond the cultural frontier of the beacon.
This article profoundly examines the historical origins of the Great Wall of China and its role in military defense. First of all, the article takes the legend of Meng Jiangnu crying on the Great Wall as an introduction, vividly revealing the painful history behind the Great Wall, so that readers have a more intimate feeling of this magnificent project. The title of the article is cleverly obtained to be both catchy and accurately summarize the entire content.
In terms of the origin of the Great Wall, this article traces it back to the Western Zhou Dynasty by citing historical records such as Guanzi [gf]30fb [gf] Light and Heavy Ding", revealing the early prototype of the Great Wall. This kind of historical traceability allows readers to have a more comprehensive understanding of the Great Wall, which goes beyond the common ornamental nature and makes the Great Wall a cultural symbol with far-reaching significance.
The article further summarizes the role of the Great Wall into three aspects: defending against foreign enemies, transmitting information and enhancing strategic advantages. This classification is clear and powerful, presenting the reader with the comprehensive role of the Great Wall in ancient military affairs. In particular, the Great Wall was emphasized to block the nomads, providing a peaceful life for the people in the Central Plains, making this project go beyond the military level and become an important part of Chinese civilization.
In the discussion of the whip of God, the article profoundly analyzes the far-reaching influence of the Great Wall on European history through the invasion of Europe by the Xiongnu, Turkic and other peoples. This unique perspective presents the Great Wall's status on the international historical stage, making its cultural value more widely recognized.
Finally, the article cleverly combines the modern context to see the Great Wall as a symbol of ancient wisdom and perseverance. This perspective of combining traditional culture with contemporary values provides readers with a new way of thinking, so that the Great Wall is no longer just a historical relic, but also a cultural spirit that has been passed down from generation to generation.
Overall, this review deeply excavates the historical connotation and cultural value of the Great Wall, and presents readers with a picture of the important role played by the Great Wall in Chinese and international history through a unique perspective. Through historical review and in-depth analysis, readers have a deeper understanding of the Great Wall, a cultural symbol, and also lay a solid foundation for us to better understand and inherit the breadth and profundity of Chinese civilization.
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