Ninghe Prefecture was a big prefecture in Yanzhou Province. Because Ninghe River flew across this prefecture, this prefecture was called Ninghe Prefecture. After the surging Ninghe River flew by Yanzhou Province, it made two convolutions on the southeast part of the vast land of Yanzhou Province like an undulating huge dragon, each convolution covered over 1,000 miles. After that, the surging Ningheriver turned winding and headed for the east like a masterpiece and a splendid landscape work of a painter.
Tender wind and winding river both benefited Ninghe Prefecture a lot. The great convolutions of Ninghe River irrigated thousands of miles' fertile land and led to the prosperity of the entire Ninghe Prefecture.
