Analysis of information sources in references of the Wikipedia article "Great Wall of China" in English language version.
Large parts of the fortification system date from the 7th through the 4th century BC. In the 3rd century BC Shihuangdi (Qin Shi Huang), the first emperor of a united China (under the Qin dynasty), connected a number of existing defensive walls into a single system. Traditionally, the eastern terminus of the wall was considered to be Shanhai Pass (Shanhaiguan) on the coast of the Bohai (Gulf of Zhili), and the wall's length – without its branches and other secondary sections – was thought to extend for some 6,690 km (4,160 mi).
[...] (in fact, there have been no bones, human or otherwise, found in the Wall, though a great number of workers did die while toiling to build it).
No bones or indeed other indication of human remains have been found in the Wall.
Jiaoshan Great Wall is located about 3 km (2 mi) from Shanhaiguan ancient city. It is named after Jiaoshan Mountain, which is the highest peak to the north of Shanhai Pass and also the first mountain the Great Wall climbs up after Shanhai Pass. Therefore Jiaoshan Mountain is noted as "The first mountain of the Great Wall".
No bones or indeed other indication of human remains have been found in the Wall.
No bones or indeed other indication of human remains have been found in the Wall.