The name of the Great Wall began in the Spring and Autumn Period and the Warring States Period. This is the most common name of the Great Wall. According to the historical records "Chu Family", "Qi Xuanwang built the Great Wall on the mountain, east to the sea and west to Jeju, which is Chu."
The construction of the Great Wall began in the Western Zhou Dynasty and lasted for more than 2,000 years, with a total length of more than 50,000 kilometers.
After Qin Shihuang, almost all dynasties that ruled the Central Plains had to build the Great Wall, including Han, Jin, Northern Wei, Eastern Wei, Western Wei, Northern Qi, Northern Zhou, Sui, Tang, Song, Liao, Jin, Yuan, Ming and Qing.
The Great Wall covers not only Beijing, but also Xinjiang, Gansu, Ningxia, Shaanxi, Inner Mongolia, Shanxi, Hebei, Beijing, Tianjin, Liaoning, Jilin, Heilongjiang, Henan, Shandong, Hubei, Hunan and other provinces, municipalities and autonomous regions in China, which proves that the ancient Great Wall in China has a very long history of construction.
Today, the practical military function of the Great Wall has gradually faded, and it is more of a cultural and spiritual function, showing the wisdom and creativity of the Chinese nation to the world.