The surname Liu is the surname of the descendants of the ancient emperor Yao. Yao's surname was Qi. Legend has it that Qi Liulei, a descendant of Yao, raised dragons for Xia. Due to poor breeding, a female dragon died. He was afraid of punishment by Emperor Xia, so he secretly fled to Henan. His descendants took Liu as their surname. This is a Chinese legend. The earliest surname was Liu. One of Liu Lei's descendants was named Du Bo by King Cheng of Zhou Dynasty. The great-grandson of Du Bo's son, Shi Hui, fled to Qin due to domestic unrest. Shi Hui later returned to the country, but one of his sons stayed in Qin. The descendants of the state restored the surname Liu and lived in today's Shaanxi area. During the Western Han Dynasty, Liu Bang bestowed the surname Liu on some ethnic minorities and the Xiang Bo clan. Later, Liu Bang married the Xiongnu and married the royal eldest daughter to the Xiongnu Chanyu. Because the Xiongnu had the habit of taking their mother's surname, the Xiongnu people had many common surnames. Liu. Due to the prosperity of the Han Dynasty, the population of the Liu surname also developed greatly. In the early days, the Liu surname mainly developed and multiplied in the north. From the Jin Dynasty, the Liu surname moved to Fujian, and around the time of the Tang Dynasty, it moved to Guangdong and Guangxi. In the history of China, there have been as many as 66 people named Liu who have called themselves kings and emperors. They have successively established dynasties or regimes such as the Western Han Dynasty, Eastern Han Dynasty, Shu Han, Han Dynasty, Former Zhao Dynasty, Southern Song Dynasty, Southern Han Dynasty, Later Han Dynasty, Northern Han Dynasty, Da Qi Dynasty, etc.* ** lasted for more than 650 years and is the surname with the most and longest feudal dynasty in China. The Liu surname has been in power for a long time and enjoys privileges, which is an important reason for the rapid development of the population. There are also many talents emerging with the surname Liu. In the Western Han Dynasty, King Liu An of Huainan organized thousands of guests to compile "Huainanzi". Liu Xiang and Liu Xin, father and son of classics, bibliographers, and writers, were the ancestors of Chinese bibliography, as well as Liu Xi, an exegesis expert; there were calligraphers in the Eastern Han Dynasty Liu Desheng; during the Three Kingdoms period, there was the philosopher Liu Shao in the Wei Dynasty; during the Wei and Jin Dynasties, there was the mathematician Liu Hui; in the Western Jin Dynasty, there were the general and poet Liu Kun, and Liu Ling, one of the "Seven Sages of the Bamboo Grove"; in the Eastern Jin Dynasty, there was the brave general Liu Laozhi; in the Southern and Northern Dynasties, there were many scholars named Liu. , the literary theory critic Liu Xie, who wrote "The Literary Mind and the Carving of Dragons", the scholar and writer Liu Jun; in the Sui Dynasty, there were the classics scholars Liu Xuan and Liu Zhuo, the leader of the peasant uprising Liu Yuanjin; the Tang Dynasty acting financier Liu Yan, the historian Liu Zhiji includes the writer and philosopher Liu Yuxi, the poet Liu Changqing, and the essayist Liu Tui; the historian Liu Shu in the Northern Song Dynasty; the poet Liu Guo and the painter Liu Songnian in the Southern Song Dynasty; the writer Liu Ying in the Jin Dynasty; and the scholar Liu Yin and Hongjin in the Yuan Dynasty. Military leader Liu Futong; in the Ming and Qing Dynasties, many people named Liu rose up to resist feudal oppression, such as Liu Tong, Liu Liu, Liu Qi, etc. In addition, painter Liu Yu, poet Liu Tiren, novelist Liu E; modern poet Liu Dabai, literary Writer and linguist Liu Bannong, Chinese proletarian revolutionary Liu Zhidan, Communist Party member Liu Hulan and so on. The Liu surname accounts for about 5.4% of the Han population, more than 60 million people, and is the fourth most common surname in China.