The first origin: from the surname Ji, from the official position of the Zhou Dynasty, belonging to the official title. Guan was a kitchen official who prepared food for the royal family in the court of the Western Zhou Dynasty, commonly known as Huotouguan, and was responsible for cooking fire. "Cuan", today's "stove", is used to place food without feet. "Big soup is cooked in Cuan", which means cook the meat and broth. A vessel without feet is called a pot. In the classic "Zhou Li Tianguan Hengren", it is recorded that "being an official is a loyal minister outside the office". Among the descendants of Guan, there are those who take their ancestral titles as their surnames and are called cuan clan. In ancient Chinese, "Cuan" means "Chui", which is synonymous with "Chu" and has the same meaning as "Chu" today. So it's also called the Cui Shi family. It was passed down from generation to generation, and then gradually moved from the Central Plains to South China. The correct pronunciation is chuàn(ㄔㄨㄢˋ). In the process of continuous development in South China, Cuan people gradually merged the blood of ancient Yunnan people, inherited Yunnan culture centered on Kunming, created world-famous Cuan culture, and became the origin of Dali culture and Nanzhao culture in later generations. Later, the ancient Dali Kingdom claimed to inherit the legacy of cuan clan and was finally destroyed by Nanzhao. The "tadpole character" used by people in Xi 'an has been lost, and no one can recognize it now. The witchcraft created by Xian people in the process of the integration of politics and religion, which contains rich knowledge of nature, has long disappeared in the long river of history, and the agricultural classics and military books handed down by Xian people no longer exist at the end of the Tang Dynasty. This is a rather thorough cultural process. Nowadays, people only know that there is a sad and touching story in Sani tribe, a descendant of ancient people, which is an oral myth and legend spread among Sani people, a branch of Yi people in Shilin area of Yunnan Province, and describes the unfortunate and tragic fate of love between Ahei, a hardworking, beautiful, strong and brave young man, and Ashima, a young woman, in poetic language. "Ashima" means "snake lady" in Chinese, and snake lady is a totem deeply worshipped by the ancients. The second origin: it originated from Zhu Rong's family, and came from the fiefs of Ban Biao and Bangu in the Eastern Han Dynasty, belonging to the fief name. During the Eastern Han Dynasty, imperial academy Xu Biao, Canon Secretary Lang, Ban Gu, Imperial Assistant Minister, Ban Chao, Empress Ban Zhao, Ban Yong, a long history of the Western Regions, and other large families were all famous ministers, historians, politicians and military strategists in the Eastern Han Dynasty. Due to the compilation of ancient classics and "White Tiger with Tongde Theory", the Western Regions were recovered and reopened. Some of his descendants took the name of the feudal city as their surname, called cuan clan, which was passed down from generation to generation. Now the pronunciation is cuàn(ㄘㄨㄢ), but the correct pronunciation is still chuàn(ㄔㄨㄢˋ), just because southerners don't read voiced ch (ㄔㄔ). There are many places in dictionaries such as Xinhua Dictionary and Chinese Dictionary. It is recorded in the cultural relic "Yan Yan Long Bei" that the cuan clan family in Yunnan is descended from Zhuan Xu, Zhu Rong, Ban Biao and Ban Gu. Because Ban was given the title of "Xiang Land" at the end of the Eastern Han Dynasty (now Xinxian County, Shanxi Province, now Dingxiang County, Shanxi Province), he took Xiang as his surname and moved south with the rise and fall of the clan. From the Shu and Han Dynasties, cuan clan family ruled Yunnan for hundreds of years, and reached its peak in the fifth year of Xiankang in Sima Yan of the Eastern Jin Dynasty (AD 339). Until the seventh year of Tianbao in Li Longji in the Tang Dynasty (AD 748), the Nanzhao King Ge Luofeng, supported by the Tang Dynasty, completely ended the rule of the cuan clan family and monopolized Tiannan for 409 years, which lasted for more than seven centuries. His family ruled for a long time, even after the Wei and Jin Dynasties. In the later period of cuan clan's rule, there were other nationalities in Yunnan, such as "Dongyi" and "Xiyi". This is because the clan of cuan clan ruled for a long time, so cuan clan became a racial name with surname. Yan Longyan, a family celebrity in cuan clan, held four official posts in Yan Longyan Monument, but there is no record of his main official posts in other history books. The reason was that the Central Plains imperial court was unable to govern Yunnan at that time, and it was only "giving history from a distance and secretariat", which was only nominal rule. Since then, the "secretariat of history" has become an official position granted by the cuan clan family, which has been handed down from generation to generation. It is a veritable "local official." During the Three Kingdoms period, Zhuge Liang, a strategist of Shu and Han Dynasties, helped Nanzhong Daxing to take Jie Jun as an official subordinate and developed it into the hereditary inheritance of local officials in cuan clan, which can be regarded as the origin of the Tusi system in Yunnan in the Yuan Dynasty. Obviously, it can not be ignored to study the Tusi system in Yunnan and the historical phenomenon of cuan clan Tugong's ancestral inheritance. In history, after Yunnan entered Nanzhao Dali, the Gui family still maintained its aristocratic status, and some of them were changed to Cunshi. One-inch clan was a cloth shoe (prime minister) in Dali, and a local official in Yuan Dynasty. After the Ming army entered Yunnan, it was the first to join, which was recorded in Inch Ascending Monument. Cuan clan clansmen who have not changed their surnames are mainly distributed in Qilin District, Qujing City, Yunnan Province, Yaojia Natural Village, Guli Village, Mengyuan Town, huayin city City, Shaanxi Province, Houzhuang Village, Fancun Village, Dongwangzhuang Township, Tianhu Town, Luanchuan County, Jincun Village, Ruyang City, Da Qiao Township, dengzhou city, and Xihe River, Yanling County, Henan Province. As a clan with a long history and splendid culture, cuan clan once formed a relatively independent ruling area in the south-central region with Yunnan as the center, which flourished for more than 500 years and made great contributions to the ancient central government's rule over the border minority areas, the unity of the Chinese nation and the unity of the country. Later, with the establishment of Nanzhao Kingdom, cuan clan gradually declined. Most of its residents lost their "Cuan" surname and assimilated into Yi and Bai ethnic groups. Some of them went abroad and some lived in the mainland, but they still kept their "Cuan" surname.

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