An ancient city with a total area of more than 2.9 million square meters was discovered in the core area of Liangzhu culture. It is no longer a tribe, but an ancient country, which is earlier than the Xia Dynasty in history and has a history of about 5,000 years. The ancient city is slightly rectangular, with rounded corners and north-south direction. East-west length 1500- 1700 meters, north-south length 1800- 1900 meters, with a total area of more than 2.9 million square meters. The bottom of the city wall is generally paved with stones and is 40-60 meters wide. On the stone foundation, pure loess is piled up, and there are still walls more than 4 meters high on the surface of some areas.

According to the pre-Qin ancient book Guanzi, there is a "country of becoming a dove" in Chu. Guanzi stresses "success" and praises "Wang Wei". Wang hong is an axe. The owner of the tomb 12 in the anti-mountain cemetery of Liangzhu ancient city does have a unique jade brand on his left hand side. Therefore, Liangzhu ancient country is likely to be a country recorded in the pre-Qin period.

Archaeological research shows that during the Liangzhu culture period, agriculture has taken the lead in entering the era of ploughing and rice cultivation; Handicraft industry tends to be specialized, especially jade carving industry; The appearance of large-scale jade ritual vessels opened the prelude to the ritual society in China. The division between noble tombs and civilian tombs shows the intensification of social differentiation; The "original writing" carved on the unearthed cultural relics is considered as the prelude to the mature writing in China.

The dawn of Chinese civilization rises from Liangzhu, which is the holy land of Chinese nation and oriental civilization. But who is the owner of Liangzhu? According to ancient legends, there are Chiyou, Fangfeng, Feather Republic of China and other tribes that roughly coincide with Liangzhu culture in time and space. There is a very mysterious pattern on the jade of Liangzhu culture. The design of this pattern is particularly like a heroic god of war, which reminds people of the warlike Chiyou.

Among the Chiyou tribe, there is a big tribal alliance headed by Jiuli, and its distribution scope includes all areas of Liangzhu culture. Therefore, the strong Liangzhu people should be one of Jiuli people. There is a feather man or feather man in Jiuli nationality. They believe in birds and animals as their ancestors, so they believe in and worship the totem of birds and animals. In Liangzhu culture, the lower part of the mysterious pattern on jade seems to be like birds and beasts, which is also the totem worshipped by Liangzhu people. So Liangzhu people may be feather people or feather people.

This ancient culture, which was quite developed at that time, has gone through 1300 years. Like a colorful meteor, it suddenly disappeared mysteriously after dazzling for a while, leaving an eternal mystery to the world.