Invaded by successive waves of Central Asian nomadic peoples, China built a great wall to protect itself from their aggressions. In its graphic section Rundt om... (About...), the Danish history magazine Illustreret Videnskab Historie used the central image and drawings from the construction phases of the original infographic. The Great Wall of China is 8,851 km long. Its construction began in the 5th century B.C. and lasted until the 16th century. UNESCO declared it a World Heritage Site in 1987.
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