Great Wall of China , believed to be the only man-made structure visible from the Moon , is traditionally known to the Chinese as the “Long Wall of Ten Thousand Li“. The stretch of formidable defensive structures built to ward off invasion of the Celestial Empire by barbarians is most often called the “Great Wall” or the “Wall of China” by Europeans.
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 (5,500.3 mi). This is made up of 6,259.6 km (3,889.5 mi) sections of actual wall, 359.7 km (223.5 mi) of trenches and 2,232.5 km (1,387.2 mi) of natural defensive barriers such as hills and rivers.
The Great Wall of China 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.
The Great Wall of China has its origins in the Spring and Autumn Periods, during the 3rd century BC. As the kingdoms of Zhao, Qin and Yan fought, each built defensive fortifications to keep the others armies at bay. The walls belonging to different states reached a length of 4,971 km (3,107 miles).
Great Wall is one of the most remarkable feat of mankind . Archaeologists estimate that the Wall once ran 6200 miles but today it is still impressive at 3,750 miles. Serious work began in 220 B.C, when China’s first emperor Qin Shihuang, conscripted millions of soldiers and peasants to participate in this dangerous undertaking. Constructions continued over the centuries, with the most impressive portions built during the 14th century Ming Dynasty
The wall was expanded and upgraded for centuries, reaching a total length of 7,360 kilometers (4,600 miles), stretching east to west across most of north China.
Visibility from the moon
Popular beliefs ranging from Ripley’s Believe It or Not!’s cartoons from 1930s, which claimed that the Great Wall is “the mightiest work of man, the only one that would be visible to the human eye from the moon,” to Richard Halliburton’s 1938 book Second Book of Marvels which makes a similar claim, have persisted, assuming urban legend status, and sometimes even appearing in school textbooks.
- The Wall has several names in Chinese Chengquiang or ‘Defensive Wall’, Changcheng or ‘Long Wall’ and Wanli Changcheng, meaning a wall that was over 10,000 meters.
- Declared as a World Heritage Site in 1987.
- In May 1932, Ripley’s Believe It or Not! Claimed that the wall is the only man made structure that can be visible to the human eye from the moon.
- At its widest point, the China wall is 30 feet wide.
- There is a Real Man Stone inscribed with Mao Zedong’s words saying You are not a real man if you have not climbed the Great Wall of China.