Engineering the Great Wall of China

Engineering the Great Wall of China — page 3
of miles It crosses mountains rivers and deserts on its way to the Bohai Sea on China’s eastern coast THE GREAT WALL The wall’s builders did not use the term Great Wall The old Chinese name for it was Changcheng That means long wall Some dynasties referred to their walls by various names such as border walls and frontier walls European and American visitors to China in the 1700s began referring to the wall as great They mistakenly thought that it was a single continuous wall They believed it had been built in the 200s BCE and survived intact for centuries What is now referred to as the Great Wall is actually a series of separate walls The walls were built and abandoned over a span of more than 2,000 years They were constructed at different times and for different reasons They followed separate routes and were built from a variety of materials Almost all the earliest walls have disappeared The remaining stone wall that is best known today was built about 500 years ago It was erected during the 6