Great Wall of China the optics much better, rendering photographic evidence irrelevant to the issue of whether it is visible to the naked eye. Great Wall of China The Great Wall of China is a series of fortifications made of stone, brick, tamped earth, wood, and other materials, generally built along an east-to-west line across the historical northern borders of China to protect the Chinese states and empires against the raids and invasions of the various nomadic groups of the Eurasian Steppe with an eye to expansion. Several walls were being built as early as the 7th century BC; these, later joined together and
History of the Great Wall of China The reason for this, according to "The New Yorker" journalist Peter Hessler, is that the Great Wall fits into neither the study of political institutions (favoured by Chinese historians) nor the excavation of tombs (favoured by Chinese archeologists). Some of the void left by academia is being filled by independent research from Great Wall enthusiasts such as ex-Xinhua reporter Cheng Dalin (成大林) and self-funded scholar David Spindler. History of the Great Wall of China The history of the Great Wall of China began when fortifications built by various states during the Spring and Autumn (771–476) and Warring States periods (475–221)