The Great Wall
The Great Wall : A Wonder in Human History
Its construction began at 7th or 8th centuries BC,and continued now and then for over 2 000
years. The was tretches across the vast area of north and central China,with a total length
of more than 50000km (100 000 li),reputed as "Enlivened for 2 000 years and Maneuvering for
100 000 li".
Historical records show that since the Warring States Period , more than 20 lord states and
imperial dynasties launched construction of defense walls,and the length would exceed 100
000 li (50 000 km) ,ln other words, the bricks,stones,and earth are excessive for a modern
highway of 10 m wide and 0.5 m thick to go around the planet for 10 circles. That is
amazingly great indeed,well worth its fame as one of the seven wonders in human history.
china travel
Construction of the Great Wall lasted for more than two thousand years,It extends over 6
700 kilometres,so it is the longest defensive engineering project in ancient times in the
world.
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