The History of the East View of Han Dynasty says, "Cai Lun is a native of Guiyang." "The History of the Later Han Dynasty Biography of Officials" says: "Cai Lun's word is respectful, and Guiyang people are also." This is the authoritative expression of Cai Lun's native place in the official revision history, which should be undisputed. The only question is where Guiyang is now. It is not difficult to draw a conclusion as long as it is analyzed objectively and rationally.

1. here, "Guiyang" refers to Guiyang county, and "Guiyang people" refer to people from the county where Guiyang county is governed. The native place expressions in the biographies of the Book of the Later Han Dynasty all explain the county and county place names clearly according to the standard style, and omit the county names when the native place is the county where the county is ruled. For example, in the Biography of Officials in the Later Han Dynasty, except Cai Lun, there are three people who only wrote the county name. After textual research, they are all from the county seat: "Shan Chao, from Henan", that is, from Luoyang County (now Luoyang City, Henan Province), where the capital was located at that time; "Zhang Rang, Yingchuan people", that is, people from Yang Zhai (dí) County (now Yuzhou City, Henan Province); "Zhao Zhongzhe is also from Anping", that is, from Xindu County (now jizhou city, Hebei Province), which is the land of Anping. Therefore, the expression of "Guiyang people" does not omit the county name information, but clearly indicates that Cai Lun is the place where Guiyang county is governed, which undoubtedly excludes the possibility of other counties in Guiyang county.

second, Guiyang county was ruled by Chen county at that time. At the beginning of "History of Counties and Countries in the Later Han Dynasty", it is specially stated that "all counties whose names are written first are governed by the county", and Guiyang County ranks first, so it is natural that Guiyang County governs. Of course, there was an episode during the replacement of the Han Dynasty, that is, in the first year of the founding of the People's Republic of China (AD 9), when Wang Mang proclaimed himself emperor, Guiyang County was changed to Nanping County, and the county was moved to Leiyang and renamed Nanping Pavilion. In the Eastern Han Dynasty, the original name of the county was restored, and Jianwuzhong (about AD 35) was returned to Chen County. Therefore, "Old Tang Book" said: "Chen, Han County, belongs to Guiyang County, which is also managed by Han County; Houhan County took care of Leiyang and sought to return it. " "Seeking" means "in an instant, soon", which indicates the short time of relocation. It is recorded in the Biography of Officials in the Later Han Dynasty that Xu Jing, the prefect of Guiyang, "tasted the spring and went to Leiyang County" during the Emperor's reign (89-115), which is a powerful proof that Guiyang County was no longer in Leiyang at that time. "Traveling in spring" means that officials go out on patrol in spring. If the county was still in Leiyang at that time, there is no reason to say this.

Third, Guiyang County was under the jurisdiction of Chenxian County in Han Dynasty, and there are many historical sites about Cai Lun in the county seat. The jurisdiction of Chen County in Han Dynasty was very large, including Beihu District, Suxian District, Guiyang County, Zixing City, Yizhang County, Rucheng County and Guidong County in Chenzhou City. In these places, there are only historical materials, local records and historical sites such as Cailun Well and Caihou Temple in Guiyang County. For example, the Records of Zhili Prefecture in Guiyang compiled during the Tongzhi period of Qing Dynasty recorded: "There is Cailun Well in the south gate of this state, and the former residence of Chuanyunlun is also known. Its well is unfathomable, there is a tunnel under it, and there are many twists and turns in the stone. It will expand its character to send well workers to welcome dry springs. Work into dozens of feet, it is said that stone can be poor and the source is hard to exhaust. Opened from the top, due to the residential buildings, the competition failed. There is no need to bend the pool in papermaking, which may be the old tomb of Cai Hou. In the later Han Dynasty, the Yellow Gate was rich in power, honest with Xi, and in politics. It is suspected that Jing Zhongsheng made this secluded cave when he was alive, and after drinking medicine, he may not be buried. It is passed down from generation to generation, but it is Cailun Well's ear "; "There are also Caihou Temple in the state, Kuixing Building in Shijiashan, south of the city, Jiaqing Zhongjian, because of the temple, and Han Cai Lun." Thus, Cai Lun's native place is now Guiyang County, which is under the jurisdiction of Zhizhen County, Guiyang County. Guiyang Huteng, a senior official of the Eastern Han Dynasty recorded in Biography of Dou He in the Later Han Dynasty, is only a few decades later than Cai Lun, and its native place is also Guiyang County today. It seems that there is not much controversy.

4. Guiyang county and ancient Guiyang county are in the same strain today, and Guiyang city is the core area of Guiyang county today. Lianzhou, Guangdong Province has a history of more than 1111 years, which belongs to Guiyang County in Han Dynasty. However, as Gu Yanwu said in Rizhilu, "Counties and counties have the same name, but they are different, so the word" small "must be added to the county, which can only be called" small Guiyang ".As for Rucheng, Hunan Province, it was after Guiyang Supervision became a state-level administrative region in Song Dynasty nearly a thousand years ago. Only today, the regional administrative system of Guiyang County has always been the "orthodox biography" of "Guiyang County" and has been continuously passed down to this day. Since the county was established as a "golden official" in the Western Han Dynasty, Guiyang County, the state, the prison, the army, the road, the government, the prefecture, the Zhili prefecture and the county have come down in one continuous line, and the name of "Guiyang" has never changed. Today, Guiyang City has never been separated from the position of the economic, political and cultural center of "Guiyang" administrative region, thus forming the most complete variety of local administrative systems and maintaining the place name.

in the first Millennium from Han dynasty to Tang dynasty, Guiyang (county, country) and Chenzhou (county, state) can be described as the unity of "two places in one place", while in the second Millennium from the first year of Tianfu in the late Jin dynasty (936) to the twenty-sixth year of the Republic of China (1937), "Chenzhou (army, road, government, Zhili state)," During the Millennium of Han and Tang Dynasties, especially in Sui and Tang Dynasties, Guiyang County and Chenzhou exchanged their names for many times, or even called "Guiyang County of Chenzhou". Today's Chenzhou City, which is the "Yidudian City", and today's Guiyang City, which is the residence of Guiyang County's "Golden Officer" and "Guiyang Supervision", have both been governed by counties (states) (the details of the relocation of the governing places in many stages are not available in Tang Dynasty) Because of the "Dacuo Mountain" in the west of Guiyang (named after the prosperity of mining and metallurgy, the confusion of cooking and business travel), it is now called Baoshan, and its thousand-year-old mining and metallurgy site has been approved by the National Mine Park. There are rich mineral resources such as gold, silver, copper, lead and iron. After the Western Han Dynasty set up Guiyang County, the court set up the only "golden official" in the country (in charge of "five-color gold" minerals) Therefore, today's Guiyang City area has been at least the residence of the county-level official offices "Golden Officials" and "Guiyang Supervision" since the Western Han Dynasty, and it has been "valued by the national economy". An ancient mining city with a good reputation in the whole country has emerged, which naturally becomes the economic center of Guiyang County (Chenzhou), and it is also logical for the county (state) to be located here or directly under the jurisdiction of the county.

during the three kingdoms period, when "Zhao Zilong took Guiyang", it left behind some historical sites in Guiyang city, such as Mengquan, Zhaohou Temple, Yinghu Temple, Zhuge 'an Temple, Cliff Stone Carving in "Zhao Yun Station" and Zhao Yun Arrow. Li Jifu, the prime minister of the Tang Dynasty who was once the secretariat of Chenzhou, recorded in the Records of Yuanhe County: "Guiyang supervisor (Chenzhou) casts 51,111 yuan every year in the city". In the Ming Dynasty, Qiu Zhuo, a scholar of the Ministry of Rites and Wenyuange (equivalent to the Prime Minister), wrote: "The father and the old man said:' The state is a big county from Han, relying on the county as a city, saying Pingyang, and the account is very sweet. Since the strike on the county, the people and things have withered and consumed, and even suffered from soldiers. Peel off the pole and recover, meaning that the sky will change today and prosper our state? Please return the state to the old county.' "These historical facts show that Guiyang City area has always been the core area of Guiyang County.