Standing up to the Mongols
Diaoyucheng presents a good example of building a defense system on hills in ancient times. Raymond Zhou / China Daily |
About 90 km north of downtown Chongqing lies a suburban community called Hechuan. It might be a misnomer to call it a "community" as it is home to 1.5 million residents, a city of sizeable scale in itself. In ancient times the population was surely much more sparse.
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