Map of the Great Wall of China
The Great Wall of China (simplified Chinese : 长城 ; traditional Chinese : 長城)) is a series of stone and earthen fortifications in northern China, built originally to protect the northern borders of the Chinese Empire against intrusions by various nomadic groups such as the Xiongnu from the north and rebuilt and maintained between the 5th century BC and the 16th century. Since the 5th century BC, several walls have been built that were referred to as the Great Wall. One of the most famous is the wall built between 220–206 BC by the first Emperor of China, Qin Shi Huang. Little of that wall remains ; the majority of the existing wall was built during the Ming Dynasty.
The Great Wall stretches from Shanhaiguan in the east to Lop Nur in the west, along an arc that roughly delineates the southern edge of Inner Mongolia. The most comprehensive archaeological survey, using advanced technologies, has recently concluded that the entire Great Wall, with all of its branches, stretches for 8,851.8 km. This is made up of 6,259.6 km of sections of actual wall, 359.7 km of trenches and 2,232.5 kmof natural defensive barriers such as hills and rivers.
Badaling is the site of the most visited section of the Great Wall of China, approximately 80 km northwest of urban Beijing city in Yanqing County, which is within the Beijing municipality. The portion of the wall running through the site was built during the Ming Dynasty, along with a military outpost reflecting the location's strategic importance. The highest point of Badaling is Beibalou, approximately 1,015 m above sea level.
UNESCO World Heritage Site :
THE GREAT WALL
Date of inscription : 1987
In c. 220 B.C., under Qin Shi Huang, sections of earlier fortifications were joined together to form a united defence system against invasions from the north. Construction continued up to the Ming dynasty (1368–1644), when the Great Wall became the world's largest military structure. Its historic and strategic importance is matched only by its architectural significance.
Postcard sent by Miao , as "MiaoChen"
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