Great Wall of China is a fence along the northern and northwestern China (PRC), Chnhuangtao Gulf of Bohai Sea (Yellow Sea) to the east of Gautay in Gansu Province in the west. Another wall was built in the south, and spread from one area to Beijing Handen. Do you know why
History
Built the first sections of fencing during the reign of the rulers "Tercao Subhao - Chango" It was a new building will allow them to protect his kingdom from the attack of the Northern people (Turkish: from left, and Mongolian and Tonguz = Mnchorien), and in particular the "Hieongeno = Hen - Nu = Huns, "one of the tribes of the Huns of Turkish people (see: Attila). The rulers of the family, "Qin", which is "Shi Huangdi," most of the parts to build a fence, he is also afraid of campaigns that were conducted in the northern nomadic tribes of the steppes. After the unification of China, "Qin Shi Huang" (221 BC). accelerate the construction of the fence, the business ended in 204 BC. m, by taking part in more than 300,000 people. Families continue to "Khan" (206 BC). And then "only" (589-618 m), the construction work. Participated in the family, "Man" (1368-1644 m), to expand and strengthen the walls and replace parts that were built with mud, Bbinaat brick. Construction reached final length (6700 km) and extended parallel to the adjacent river and formed Anhanaouath terrain with mountains and hills crosses. The Great Wall was added to the UNESCO World Heritage List as defined in 1987.
Construction
The wall was built of clay and stone, brick, on the east side. The width of 4.6 m to 9.1 m at its base (an average of 6 meters), it is already in the above (3.7 m). The length varies from 3 to 8 meters. Placed guard towers with a total length of 12 meters every 200 meters. On the eastern side of the fence, which extends several hundred kilometers, the best part of the saved, while the remaining parts, except for simple effects. This Wall of China is the sole teacher, which was built by man can be viewed from space, and a man of Chinese space "Yang Liwei" confirmed this statement. Despite the best efforts of the Chinese rulers to stop building the fence does not have the necessary tasks to protect the country from attacks of the nomadic peoples (barbarians). Only the intervention of kings emperors "Zheng", which in turn descended from one of these people, the country has allowed the elimination of these threats
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