Liao civilization

The Liao Civilization or Liao River Civilization, named after the Liao river, is an ancient Chinese civilization that originated in the southern part of Manchuria, in the northeastern Liao basin of China. It is thought to have formed in about 6,200 B.C. This civilization was discovered when Ryuzo Torii, a Japanese archaeologist, discovered the Hongshan culture in 1908.

Large-scale pit-type houses, graves and temples with altars were excavated. It is thought that the Liao civilization may have been "a country" of the prehistoric age.

A model of the feng shui were excavated from remains of the Hongshan culture. Ball products such as the jade which made the precursors of Chinese dragon were discovered in remains of Xinglongwa culture. In addition, the oldest pit-comb ware and Liaoning bronze dagger (biwa form bronze sword) were excavated.

Since it was contemporaneous with Hwan‐huou civilization and Chang Jiang Culture, it is thought to have influenced ancient Chinese culture.

This region was thought to have been desert for the past 1 million years. However, a 2015 study found that the region once featured rich aquatic resources and deep lakes and forests that existed from 12,000 years ago to 4,000 years ago. It was changed into desert by climate change which began approximately 4,200 years ago. Therefore, people of the Hongshan culture may have emigrated to the south approximately 4,000 years ago and later influenced Chinese culture.

...
Wikipedia