The construction of the Great Wall began in the 7th century B.C. during the Spring and Autumn and Warring States Periods, when various vassal states built many walls and beacon towers to defend themselves against each other. These earliest Great Walls did not have the scale and coherence that we know today. After the unification of the six states by Qin Shi Huang, a large-scale construction of the Great Wall, called the Qin Great Wall, was carried out between 221 and 207 BC, which was an important starting point for the construction of the Great Wall. But this was only one stage in the long history of the Great Wall. During the Ming Dynasty (1368-1644), the construction of the Great Wall reached its peak. The government of the Ming Dynasty started to maintain the Great Wall at the beginning of the Ming Dynasty and built on it, especially during the Jiajing period (1522-1566), in order to resist the invasion of the nomadic people in the north, the construction of the Great Wall was further strengthened, especially in the parts near Beijing, such as Badaling, Mutianyu, etc. |