At the just-concluded 2065438+06124 October Yan Di Cultural Symposium in Gaoping, Shaanxi Province, Mr. Guo Xiaoliang of Hong Kong Shennong (Yan Di) International Industry Group opened the fog of China's prehistoric history by telling an ancient fairy tale, combining the geographical features of North China and East China with historical records, and borrowing modern map tools and simulation software. From the peak of transgression in 5500 BC to around 3000 BC, after more than 2000 years of low tide, the coastline temporarily stabilized, and ancient humans also extended from high to low, merging with each other, forming a variety of prehistoric civilizations. The northern new culture near "Tai 'an Island" developed into Dawenkou culture and Longshan culture with the widest coverage later. Shijiahe culture, Xuejiagang culture, Tangjiagang culture, Liangzhu culture, Legislative Platform culture, Hougang culture and other cultures appeared in the original seawater coverage area. However, Shanxi Jinnan, northern Shaanxi and northwestern Henan, which are located in the middle and lower reaches of the Yellow River, have not been greatly affected by seawater intrusion. Prehistoric civilizations have been passed down from generation to generation and the climate is suitable. At the same time, the relatively advanced Miaodigou culture, Zaoyuan culture and Taosi national culture appeared in the Yao and Shun era in ancient history. Therefore, Fang Guozhong's central position at that time was gradually established in southern Shanxi, that is, the earliest "China" in pre-Qin historical records, which laid the foundation for China and left a chapter in the era of 5,000 years of civilization.