What is the length of the Great Wall

The Great Wall is one of the most famous buildings in ancient China and the longest defense project in the world. It was built in ancient China to defend against the invasion of northern nomads. It starts from Hebei Province in the east and stretches to Gansu Province in the west, with a total length of approximately 21,196.18 kilometers.

1. Historical background of the Great Wall

In ancient Chinese history, the invasion of northern nomads has always been a serious threat. In order to protect the country's security, China's rulers began to build the Great Wall. The earliest construction of the Great Wall can be traced back to the Spring and Autumn Period and the Warring States Period, but the truly grand Great Wall began in the Qin Dynasty.

After Qin Shihuang unified China, he ordered the early Great Wall to be connected to form a defense line that ran from east to west. This is what we call the Great Wall today. The purpose of building the Great Wall was to stop the invasion of northern nomads and protect the security of the Central Plains.

2. The construction process of the Great Wall

The construction process of the Great Wall can be divided into three main stages: Qin Dynasty, Han Dynasty and Ming Dynasty.

2.1 Qin Dynasty

After Qin Shihuang unified China, he ordered the construction of the Great Wall to protect the border. The Great Wall built by the Qin Dynasty was mainly located in today's Hebei, Shanxi and Shaanxi. This section of the Great Wall is the starting point of the Great Wall and the earliest part to be built.

The Great Wall built in the Qin Dynasty mainly used earth and stone structures, and a large amount of manpower and material resources were used in the construction process. Although this section of the Great Wall did not leave many relics in history, it laid the foundation for the Great Wall.

2.2 Han Dynasty

The Han Dynasty was the second important stage in the construction of the Great Wall. During the Han Dynasty, the Great Wall was further built and strengthened. The Great Wall built by the Han Dynasty was mainly located in today's Hebei, Shanxi and Inner Mongolia.

The Great Wall built in the Han Dynasty was relatively complex in structure, using masonry structures and adding more defensive facilities, such as arrow towers and beacon towers. These facilities make the Great Wall stronger in defense and can effectively resist enemy attacks.

2.3 Ming Dynasty

The Ming Dynasty was the last important stage in the construction of the Great Wall. During the Ming Dynasty, the Great Wall was further repaired and reinforced. The Great Wall built in the Ming Dynasty was mainly located in today's Hebei, Beijing and Shanxi.

The Great Wall built during the Ming Dynasty was similar in structure to the Han Dynasty, but with greater attention to detail and decoration. The Great Wall built during the Ming Dynasty is known as the model of the Great Wall and is the remains of most of the Great Wall we see today.

3. Protection and restoration of the Great Wall

The construction of the Great Wall took hundreds of years and went through ups and downs. The protection and restoration work of the Great Wall has beenIt is an important task of the Chinese government.

In recent years, the Chinese government has taken a series of measures to protect and restore the Great Wall. These measures include strengthening supervision, increasing investment, repairing ruins, and building tourist facilities. The purpose of these measures is to protect the original appearance of the Great Wall and allow more people to understand and appreciate this world cultural heritage.

4. The significance of the Great Wall

As the longest defense project in ancient China, the Great Wall has important historical and cultural significance.

First of all, the Great Wall has witnessed the magnificent process of unification in ancient China. It is one of the symbols of unification in ancient China, representing the will and ability of unification in ancient China.

Secondly, the Great Wall shows the wisdom and courage of the ancient Chinese people. Building the Great Wall requires a lot of manpower and material resources. It is the crystallization of the wisdom of the ancient Chinese people.

Finally, the Great Wall is an important part of Chinese culture. It is one of the symbols of ancient Chinese culture and represents the glory of ancient Chinese civilization.

Conclusion

The Great Wall is one of the most famous buildings in ancient China and the longest defense project in the world. It is approximately 21,196.18 kilometers in length and was built in ancient China to defend against the invasion of northern nomads. The construction of the Great Wall went through three important stages: the Qin Dynasty, the Han Dynasty and the Ming Dynasty. A large amount of manpower and material resources were used in the construction process. Today, the Chinese government is committed to protecting and restoring the Great Wall so that more people can understand and appreciate this world cultural heritage.