How long is the Great Wall?

how long is the Great Wall of Wan Li? This is a question that China people may have asked since Qin and Han Dynasties, but no one can give a scientific and accurate figure. Yesterday, National Cultural Heritage Administration and the State Bureau of Surveying and Mapping released the latest survey data on the resources of the Great Wall in the Ming Dynasty. The length of the Great Wall in the Ming Dynasty was 8,851.8 kilometers, which was more than 2, kilometers longer than what experts had previously known.

Don't let the Great Wall be one meter shorter

According to the news released by National Cultural Heritage Administration and the State Bureau of Surveying and Mapping, the Ming Great Wall starts from Hushan, Liaoning (124 3 ′ 56.7 ″ east longitude and 4 13 ′ 19.1 ″ north latitude) in the east and ends at Jiayuguan, Gansu, passing through Liaoning, Hebei, Tianjin, Beijing, Shanxi, Inner Mongolia, Shaanxi and Ningxia from east to west. Among them: the length of artificial wall is 6259.6 kilometers; Trench length is 359.7 kilometers; The length of natural insurance is 2232.5 kilometers.

Dong Yao Hui, executive vice president of the Great Wall Society, analyzed that the reason for the extra 2, kilometers was mainly because the length data known by experts in the past mainly came from the relevant records of local historical materials. "The figure of more than 6, kilometers is the sum of the lengths of artificially built city walls calculated according to historical data. In fact, the Great Wall also includes a large part of paragraphs that use natural barriers as walls. After this investigation, these paragraphs are also counted, so it will be 2, kilometers longer than in the past."

It is reported that the Great Wall resources survey jointly conducted by National Cultural Heritage Administration and the State Bureau of Surveying and Mapping began in 26, and the survey was divided into three parts: the Great Wall of Ming Dynasty, the Great Wall of Qin and Han Dynasties and the Great Wall of other times, and it is planned to be preliminarily completed by the end of 21. The data of the Ming Great Wall released yesterday is the first stage of the national Great Wall resources survey. Dan Jixiang, director of National Cultural Heritage Administration, said: "We will do our best to protect the existing Ming Great Wall, so that its length of 8851.8 kilometers is not less than one meter!"

The ancient Great Wall in Yuyang has development value

For many viewers, the figure of 8815.8km is enough to make people pay more attention to the Great Wall, but for many tourism departments, accurate calculation will provide scientific basis for tourism development.

during this two-year investigation and survey, the surveyors have successively discovered more than 1 tourist resources with development value, such as the ancient Great Wall wall in Lebao Village, Yuyang, Shaanxi Province, the Huochi in Qingshan Ridge, Tianjin, and the Xigou Lime Kiln Site in Xinchengzi Town, Beijing.

According to the Beijing Morning Post and CCTV

Why did Shanhaiguan start in the east?

According to Tong Mingkang, deputy director of National Cultural Heritage Administration, it has always been thought that Shanhaiguan is the starting point of the eastern end of the Great Wall of Ming Dynasty, and it is common knowledge that the Great Wall of Ming Dynasty starts from Shanhaiguan in the east and reaches Jiayuguan in the west. But in fact, the starting point of Shanhaiguan as the eastern end of the Great Wall in Ming Dynasty was the result of the "closed policy" in Qing Dynasty. In order to "preserve the birthplace of ancestors" and restrict the Han and Mongolian people from entering the area east of Shengjing, the Qing government built a wicker border, set up a border card at Shanhaiguan, and gradually replaced the Great Wall of Liaodong with wicker border in records and maps. This survey scientifically clarified the understanding that Hushan in Dandong is the eastern starting point of the Great Wall in Ming Dynasty.