Ningxia Hui Autonomous Region
A section of the Great Wall of China runs along Ningxia's northeast. At an area of 66,400 km 2, Ningxia is slightly bigger than Sri Lanka. It is China's fourth smallest governed area after Macau, Hong Kong and Hainan. Land south of the Yellow River was initially absorbed into China by the Qin Dynasty (221206 BCE). Ningxia's first ...