Who can give me a panoramic view of the Great Wall on the map of China?

Great Wall resources are mainly distributed in Hebei, Beijing, Tianjin, Shanxi, Shaanxi, Gansu, Inner Mongolia, Heilongjiang, Jilin, Liaoning, Shandong, Henan, Qinghai, Ningxia, Xinjiang and other provinces, autonomous regions and municipalities. Shaanxi Province is the province with the richest resources of the Great Wall in China, with a total length of 1838 km.

According to the results of the national Great Wall resources survey conducted by cultural relics and surveying and mapping departments, the total length of the Great Wall in Ming Dynasty was 885 1.8km, and it was more than 1 1,000 km in Qin and Han Dynasties and its early period, and the total length was more than 2 1 1,000 km.

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On the Historical Evolution of China Great Wall

1, pre-Qin

The history of building the Great Wall can be traced back to the Western Zhou Dynasty. In order to resist the attack of nomadic people in the north, the Zhou Dynasty built a series of castles "Fierce Cities" for defense. During the Spring and Autumn Period and the Warring States Period, in order to compete for hegemony and defend each other, countries built the Great Wall on their borders according to their respective defense needs.

The earliest building was the "Chufangcheng" in the 7th century BC. Later, Qi, Korea, Wei, Zhao, Yan, Qin, Zhongshan and other vassal States built the Great Wall for self-defense. Among them, Qin, Zhao and Yan are adjacent to Xiongnu, a powerful nomadic people in the north.

2. Qin dynasty

In order to maintain and consolidate the unprecedented unity and security of the Great Empire, Qin Shihuang successively adopted a series of major strategic measures for national defense construction and frontier defense, one of which was the large-scale construction of the Great Wall of Wan Li.

In the thirty-second year of Qin Shihuang (2 15), General Meng Tian led 300,000 troops to attack the Huns in the north and took the land of Henan. Later, the Great Wall was built, winding from Lintao (now Shanni County, Gansu Province) in the west to Liaodong (now Liaoning Province) in the east for more than 10,000 miles. Since Qin Shihuang built the Great Wall, it has been called the Great Wall of Wan Li.

3. Han dynasty

After Emperor Wu of the Han Dynasty ascended the throne, he launched wars against the Xiongnu many times, expelled them to Mobei, restored the Qin Changcheng built by Meng Tian, and built the Outer Great Wall, the Great Wall with a total length of nearly 10,000 kilometers from Dawaner Shicheng in the west to the north bank of Yalu River in the east. At this time, the Great Wall of Qin, Zhao and Yan in the Warring States period was abandoned, and its military defense function ended.

4. Sui Dynasty

During the 28 years from the first year of Huang Kai to the fourth year of Daye, the rulers of Sui Dynasty mobilized nearly 2 million laborers seven times to build the Great Wall and fortifications on the northern and northwestern borders. On the basis of the construction of the Great Wall in the Northern Wei and Zhou Dynasties, it goes to He Zi in the east, passes through the territory of Shuofang and Lingwu, and reaches the Great Wall and fortifications east of Yugu Valley in the west.

5. Song Dynasty

In the Song Dynasty, the Great Wall started from Qingcheng Mountain in kelan county in the west and reached Heyeping Mountain in the east. The existing 38-kilometer-long Great Wall of Song Dynasty is all made of flaky stones. After preservation, the height is about 4.2m, and the top width is about1.6m. In some areas, there are female walls of about 30cm, and in some areas, there are fortress ruins. A large number of Song Dynasty porcelain pieces were scattered nearby, and the remains of batteries were also found in some areas.

6. Ming dynasty

The Great Wall of Ming Dynasty is a military defense project built in the northern part of Ming Dynasty, also known as the side wall, which is different from the Great Wall of Wan Li built by Qin Shihuang. In the Ming Dynasty, the "inner" Great Wall and the "inner three passes" Great Wall were built outside the "outer" Great Wall.

The "interior wall" starts from Pianguan at the junction of Inner Mongolia and Shanxi in the west, enters Hebei at Yanmenguan and Xing Ping in the east, then goes to the northeast, passes through Yuanyuan, Fangshan and Changping counties, reaches Juyongguan, and then reaches Huairou No.4 Pass from north to east, and is connected with the "Outer" Great Wall, with Zijingguan as the center, generally showing a north-south trend.

7. Qing dynasty

The Great Wall has many names. Although Kangxi in the Qing Dynasty had an order not to repair the side wall, the form was greater than the meaning. In fact, the scale of the Great Wall in Qing Dynasty is quite large, and its geographical span is unprecedented. Its construction scope basically includes all provinces north of Huaihe River, especially north of Yellow River.

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