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The Great Wall of China (traditional Chinese: 萬里長城; simplified Chinese: 万里长城; pinyin: Wànlǐ Chángchéng, literally "ten thousand li long wall") is a series of fortifications that were built across the historical northern borders of ancient Chinese states and Imperial China as protection against various nomadic groups from the Eurasian Steppe.
The history of the Great Wall of China began when fortifications built by various states during the Spring and Autumn (771–476 BC) [1] and Warring States periods (475–221 BC) were connected by the first emperor of China, Qin Shi Huang, to protect his newly founded Qin dynasty (221–206 BC) against incursions by nomads from Inner Asia.
The Ming Great Wall ( Chinese: 明長城; pinyin: Ming changcheng ), built by the Ming dynasty (1368–1644), forms the most visible parts of the Great Wall of China today. A comprehensive archaeological survey, using advanced technologies, has concluded that the Ming walls measure 8,850 km (5,500 mi) from Jiayu Pass in the west to the sea in ...
Researchers wanted to know if the biocrusts growing on the Great Wall of China were helping or hurting the structure. They surveyed about 375 miles of walls and fortresses built about 500 years ...
1,500,000 [citation needed] Qin's wars of unification were a series of military campaigns launched in the late 3rd century BC by the state of Qin against the other six powers remaining in China — Han, Zhao, Yan, Wei, Chu and Qi. Between 247 and 221 BC, Qin had developed into one of the most powerful of China's Seven Warring States that ...
Jiayu Pass or Jiayuguan ⓘ ( simplified Chinese : 嘉峪关; traditional Chinese : 嘉峪關; pinyin : Jiāyù Guān) is the first frontier fortress at the west end of the Ming dynasty Great Wall, near the city of Jiayuguan in Gansu province. Along with Juyong Pass and Shanhai Pass, it is one of the main passes of the Great Wall.
These soil surfaces on the Great Wall are covered by a “living skin” of tiny, rootless plants and microorganisms known as biocrusts that are a source of the heritage site’s staying power ...
Qin Shi Huang (Chinese: 秦 始皇, pronunciation ⓘ; February 259 – 12 July 210 BC) was the founder of the Qin dynasty and the first emperor of China. Rather than maintain the title of "king" (wáng 王) borne by the previous Shang and Zhou rulers, he assumed the invented title of "emperor" (huángdì 皇帝), which would see continuous use by monarchs in China for the next two millennia.