Nesting clan, referred to as "Nesting" or "Nest", is called "Big Nest clan". The Chinese nation, the first of the five families, is known as the "ancestor of mankind" in China. Ancient tribal leaders in China established an ancient nest country. Born in Chaohu Lake Basin, Anhui Province, he moved to Shilou Mountain, Shanxi Province.

Some scholars believe that you Chao was born in Cangwu and his capital was in Wuyang, Henan. Some historians believe that the Chao family lived in Shandong, Sichuan, Inner Mongolia, Yunnan, Hunan and other places.

According to the historical records of China, Youchao lived in the early Paleolithic period and created a nesting civilization. You Chao's family is recorded in many ancient and modern historical, literary and academic monographs, such as Historical Records of Huang San, Zhuangzi's Stealing Feet, Five Stories of Han Feizi, History of Pre-Qin Dynasty, Taiping Yulan, Kangxi Dictionary, A Brief History of China and Cihai.

History tells us that Youchao is the inventor of primitive human nesting and the pioneer of nesting civilization. You Chao's great contribution to the creation of nesting civilization has had a positive and far-reaching impact on the development of Chinese civilization and human civilization.

The construction concept of the Bird's Nest, the main venue of the 2008 Beijing Olympic Games, comes from the nesting civilization connotation of Youchao. 20 19 China Pavilion of China Beijing World Horticultural Exposition imitates the ancient nesting smart construction.

Huang San's records: "Building wood as a nest room and attacking leaves as clothes" are all summarized from the perspective of human civilization enlightenment, which means that there are nest people as the leaders of human civilization.

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According to legend, there were fewer people and more animals in ancient times. In order to resist wild animals, the Chao family taught people to take trees as their nests, pick oak chestnuts during the day and stay in trees at night. Zhuangzi said: "In ancient times, there were many beasts, so people lived in nests to avoid them." That is, the era of the Chao family.

The history book says: In ancient times, there were few people, but many animals. Humans live on the ground and are often attacked by animals, and there is a danger of casualties at any time. Forced by the harsh environment, some humans began to migrate north. They came to Shanxi and Shaanxi today and began to live in caves. Due to the cold climate in the north, many people refused to move north.