The full text is about 2200 words, with 11 maps, please arrange the reading time properly. The map is set in modern times and is used as a geographical comparison between ancient and modern times.
The black dotted line in the figure below is the administrative division of contemporary Dazhou City. In the pre-Qin period, the area of present-day Dazhou City belonged to the State of Qi and the State of Pakistan successively. At the end of the Warring States period, the Qin state destroyed Ba, and its land belonged to the Qin state ba county, and began to be included in the administrative division of the country.

Western han dynasty
The picture above shows the Western Han Dynasty in 7 AD. At this time, there was a county in the territory of present-day Dazhou City, which belonged to Ba County. Ba County, Zhijiang Prefecture (present-day Chongqing).
Tangqu County, the Western Han Dynasty changed the channel to the site of the city dam in Tuxi Town, Ququ County. At the end of the Eastern Han Dynasty, it was ruled by Tangqu County, and the Three Kingdoms and Western Jin Dynasty belonged to Bashi County. The Sixteen Kingdoms became Han and ruled the county of Tangqu. The Southern Song Dynasty was abolished.
Western Jin Dynasty
The picture above shows the Western Jin Dynasty in 281 AD. At this time, there were two counties in the territory of present-day Dazhou City, which belonged to Bashi County. Bashi County ruled Langzhong County (present-day Langzhong City).
Xuanhan County (former), the origin of the administrative structure of the Eastern Han Dynasty and the Emperor, is the administrative structure of present-day Dazhou City. In the second year of the Western Wei Dynasty (553), it was changed to Shicheng County, in the eighteenth year of the Sui Kai Emperor (598) it was changed to Tongchuan County, in the ninth year of Ming Hongwu (1376) it was merged into Dazhou as the state capital, and in the seventh year of Qing Jiaqing (1802) it was changed to Da County. In 1976, Daxian District was established as Daxian City, the original Daxian Was later changed to Dachuan District, and Daxian City was gradually changed to Tongchuan District.
Sui Dynasty
The picture above shows the Sui Dynasty in 612 AD. At this time, there were eight counties in the territory of present-day Dazhou City, which belonged to Tangqu County and Tongchuan County.
Liujiang County, placed in the first year of the Northern Zhou Dynasty (559), is the origin of the administrative structure of present-day Qu County. It was formerly ruled by Liujiang County, Quzhou County, Dangqu County, and Yushan County, and was merged into Quzhou as a prefecture city in the early Ming Dynasty, and soon changed to Qu County, which continues to this day.
Dongxiang County, Southern Dynasty Liangzhi, the origin of the administrative structure of present-day Xuanhan County. Puguang Town, Present-day Xuanhan County, was abolished in the middle of the Yuan Dynasty, and was restored and relocated to the present site in the first year of Ming Chenghua (1465). At the beginning of the Republic of China, it was changed to Xuanhan County, which continues to this day.
Xuanhan County (後), Western Wei County, northeast of present-day Xuanhan County; Yongmu County, in the eighteenth year (598) of the Sui Kai Emperor, changed to Yongkang County, which ruled qiaowan Township in present-day Dachuan District; Shigu County, Western Wei County, ruled donglin township in present-day Xuanhan County; Sangang County, in the second year of the Southern Dynasty Liang Datong (536), ruled the town of Heshi in present-day Dachuan District; Xiliu County, in Western Wei, changed to Hanxing County, and ruled the northeast of present-day Xuanhan County. These five counties were abolished during the Tang and Song dynasties and will not be repeated.
Tang dynasty
The picture above shows the Tang Dynasty in 741 AD. At this time, there were ten counties in the territory of present-day Dazhou City (taiping markings were biased and not in the territory), which belonged to three prefectures.
Tongzhou , in the second year of the Western Wei Dynasty ( 553 ) , was changed to Wanzhou , the predecessor of the prefecture-level administrative structure of present-day Dazhou. Sui Daye initially changed to Tongchuan Commandery, and Tang Wude restored Tongzhou in the first year (618). In the third year of the Northern Song Dynasty (965), it was changed to Dazhou, and in the seventh year of Qing Jiaqing (1802), it was changed to Suiding Province, which has gradually evolved to the present.
Qu Prefecture (衢州), established in the third year of Liang Datong (537), was changed to Tangqu Commandery (宕渠郡) in the third year of Sui Daye (607), and was restored to Qu Prefecture in the first year of Tang Wude (618). At the beginning of the Ming Dynasty, its prefecture-level administrative structure was abolished, leaving only one qu county.
Dazhu County, wuzhou jiushi first year (700), the origin of the administrative structure of present-day Dazhu County. Initially ruled the north of present-day Qu County, it was later abandoned several times, and the present site was moved to the 20th year of the Yuan Dynasty (1283), which continues to this day.
Adjacent Shan County, also known as Yishan County, was placed in the third year (537) of the Southern Dynasty Liang Datong, ruling the southeast of present-day Dazhu County, the Sui Kai Emperor was abolished at the beginning of the sui dynasty, and tang Wude was restored in the first year (618). It was abolished in the 20th year of the Yuan Dynasty (1283) and did not continue.
Xinning County, placed in the second year of the Western Wei Dynasty (553), is the origin of the administrative structure of present-day Kaijiang County. In the northeast of the present-day county, the northern Song Dynasty moved to the present site in the second year of the Dao Dynasty (996). In 1914, it was renamed Kaijiang County and continues to this day.
Northern song dynasty
The picture above shows the Northern Song Dynasty in 1111 AD. At this time, there were seven counties in the territory of present-day Dazhou City, which belonged to Dazhou and Quzhou.
Baqu County, southern Song Dynasty, ruled the eight towns of present-day Xuanhan County. The Sui Kai Emperor was initially abolished, and Tang Yongtai was reinstated in the first year (765). It was abolished in the 22nd year of the Yuan Dynasty (1285) and was not reinstated.
Yuan
The picture above shows the Yuan Dynasty in 1330 AD. At this time, there were four counties in the territory of present-day Dazhou City, which belonged to Shunqing Road and Kuizhou Road. The three-level administrative divisions and the four-level administrative divisions of the Yuan and Ming dynasties were parallel, and at this time, Dazhou and Quzhou were still prefecture-level administrative structures, but the second-level administrative division map drawn by the author could not be reflected.
The administrative affiliation relationship is that Tongchuan and other counties belong to Dazhou, Dazhou belongs to Fuzhou Road, and Fuzhou Road belongs to Sichuan Province. The situation is similar in Quzhou, which has several counties under its jurisdiction and belongs to Shunqing Road.
Ming dynasty
The picture above shows the Ming Dynasty in 1582 AD. At this time, there were six counties in the territory of present-day Dazhou City, which belonged to Shunqing Province and Kuizhou Prefecture.
Taiping County, placed in the 10th year of Ming Zhengde (1515), is the origin of the administrative structure of present-day Wanyuan City. In the seventh year of Qing Jiaqing (1802), it was upgraded to a directly subordinate office, which was a prefecture-level administrative structure, and in the first year of Daoguang (1821), it was restored to a county. In 1914, it was renamed Wanyuan County, and in 1993, it was renamed Wanyuan City.
Qing Dynasty
The picture above shows the Qing Dynasty in 1820 AD. At this time, there were five counties and one hall in the territory of present-day Dazhou City, which belonged to Suiding Province and Taiping Hall. The hall was a commonly used local administrative structure in the Qing Dynasty, with decentralized halls (county-level) and directly subordinate halls (prefecture-level). The Taiping Hall is a directly subordinate hall and a prefectural-level administrative body, but it has only existed for 20 years.
Suiding Province was re-established as Dazhou, and together with the jurisdiction of the Taiping Hall, it was almost the same as in modern times.
Early Republic of China
The picture above shows the early Republic of China in 1914. At this time, the area of present-day Dazhou City was under the jurisdiction of Dongchuan Province, and The Zhiba County of Dongchuan Province (present-day Chongqing City) was under the jurisdiction of Dongchuan Province. In 1928, the prefectural system was abolished, and the counties were directly under the jurisdiction of the provinces.
The beginning of the founding of the People's
The picture above shows the early days of the founding of the people's republic of China in 1953 AD. In 1950, it was established as a special district of Da County, which had jurisdiction over Da County, Xuanhan, Kaijiang, Pyeongchang, Nanjiang, Tongjiang, Wanyuan and Bazhong Counties. In 1953, the three counties of Dazhu, Linshui and Quxian were divided into the administrative divisions in the above picture.
In 1968, the Special District of Daxian was reorganized into the District of Daxian County, and the jurisdiction remained unchanged. In 1976, daxian city was established, and in 1979, Baisha Workers' and Peasants' District was established. In 1993, the four counties of Linshui, Tongjiang, Nanjiang and Pyeongchang were separated, wanyuan county and Baisha industrial and agricultural district were abolished to form Wanyuan City, and Daxian District and Daxian City were renamed Dachuan District and Dachuan City.
Contemporary
With the withdrawal of the Dachuan district as a city in 1999, it gradually became today's administrative division.
Throughout the history of the administrative division of Dazhou City, during the Western Han Dynasty, There was Tangqu County, which was the first county in the region. Moreover, Tangqu County was a county in the last years of the Eastern Han Dynasty, but its administrative structure did not continue. The administrative structure of Xuanhan County set up by the Eastern Han Dynasty continues to this day, but it is not today's Xuanhan County, but Dachuan District and Tongchuan District.
From the Southern and Northern Dynasties to the Ming Dynasty, the area of present-day Dazhou City was basically two prefecture-level administrative structures of Dazhou (Tongzhou, Tongchuan County) and Quzhou (宕渠郡), which lasted for thousands of years. By most of the Qing Dynasty, there was only one Suiding Province left, and Quzhou had become Qu County.
At the beginning of the founding of the People's Republic of China, the jurisdiction of Daxian Special District was quite large, and the administrative jurisdiction was basically maintained until the establishment of Bazhong District and Guang'an District in 1993. The Bazhong area was basically demarcated from the Daxian area at that time, and it has been so far.
The history of administrative divisions of most prefectures and cities in the country has been completed, and it is not easy to govern and learn, please share more and be grateful. Source: Twenty-five Histories, Taiping Huanyu Chronicle, Yuanhe County Chronicle, Water Jingzhu and other canonical histories and geographical general records. #达州 #