In the 26th year of Qin Shihuang (22 1), the county system was implemented and Danyang County was established, belonging to Huiji County. At the end of the Qin Dynasty or Chu and Han Dynasties, it was changed to Yan County.
In the sixth year of Emperor Gaozu of the Western Han Dynasty (20 1), Jingzhou was established in fifty counties of Huainan, and Danyang County belonged to it. Ten years ago (197), Yijing was the State of Wu. In the third year of Emperor Jingdi (before 154), Wu State was changed to Jiangdu State, and Danyang County successively belonged to Wu State and Jiangdu State. In the first year of Yuanshuo (before 128), Jiangdu was located in Danyang, Yuling and Hushu, and Danyang County belonged to Danyang. In the second year of Yuanfeng (former 109), except for the country, it was placed under Danyang County. In five years (before 106), thirteen state secretariat departments were set up, and Danyang County was placed under Yangzhou secretariat department.
In the first year of Tianfeng in Xin Mang (14), Yiting County was established in Danyang and Muling counties, and the old system was restored in the first year of Reform (23).
In the sixth year of Jianwu in the Eastern Han Dynasty (30), Danyang County moved to Wanling (now Xuanzhou), which belonged to Danyang County and still belonged to Yangzhou. In the third year of Jian 'an (198), Sun Ce was named the marquis of Wu, and Danyang County was the territory of Wu.
In the second year of Taikang in the Western Jin Dynasty (28 1), Danyang County was divided into two parts, which were located in Huxian County (now 38 miles southeast of Dangtu City).
In the fourth year of the Eastern Jin Dynasty (329), there was a war between Jianghuai and many people crossed the south. Overseas Chinese in Jiangnan set up dangtu county and Huainan counties to accommodate refugees. The name of Dangtu County originated from Tushan's country in ancient times, and it is recorded in Shangshu Yiji that Yu married Tushan's daughter. Countries other than counties. County name is located in Tushan near Huaihe River. In the ninth year of Yixi (4 13), Danyang County was divided into Huainan County in Huxian County and Dangtu County in the south of Huxian County (now Xuancheng and Nanling have their own places, but they are not as big as today's counties). So overseas Chinese settled in Huainan County, and dangtu county began to have real soil.
During the Song, Qi, Liang and Chen Dynasties, Danyang County was Danyang County and Yuhu County was Huainan County. In the third year of Song Yuanfeng (1080), the county administered 14 townships and 6 towns. Historical Records recorded six towns, namely, Chua's Town, Cihu Town, Huangchi Town, Qingyou Town, Danyang Town and Xue Dian Town.
Yuan has a capital and a map, and the county has a capital of 3 1. The map and distribution of its jurisdiction are unknown.
In the ten years of Jiajing in Ming Dynasty (153 1), there were 14 townships, 5 towns, 13 cities and15 cooperatives in the county. Shicheng Township is located in the northeast of the county seat, and governs Hua Qin, Qinnan, Beth, Li Xi, Lidong, Wulin, Linxi, Donnan, Bei Tang, Mibai, Zheng Yifei, Chaopi, Guzhu, Gucheng 15. Yanfu Township, 20km south of the county seat, governs He Xue, Liucun, Laiding, Guangde, Changlin, Maogang, Tongtai, Zhao Xi, Chongping, Zhongji, Shuhe and Ningdong 12. Gushu Township, 40km southeast of the county seat, governs 8 cooperatives, namely Ni Nan, Shifeng, Qinghe, Luqiao, Huatang, Fuding, Guanbian and Huacheng. Huangchi Township, located 35km east of the county seat, governs Dongyang, Xiaping, Qixiang, Baidong, Baixi, Xian Yi, Fantou, Yitong, Funan, Zhucun, Guan Yi 1 1. Huaqia Township, 7.5 kilometers north of the county seat, has jurisdiction over Quiet, Yanghu, Deli, Xiaxi, Xiabei, Jiaoxi, Jiashan, Li Tang, Angao and Hutou 10. Cihu Township, 25 kilometers north of the county seat, governs seven cooperatives, namely Zanan, Xishi, Geyang, Hehu, Hexing, Zhushan and Shengping. Guishan Township is located in the southeast of the county 10 km, and has jurisdiction over seven cooperatives, namely Zunsu, Tongde, Tongdong, Zhong Yi, Angao, Chongjiao and Yushan. Wang Ling Township is located 30 kilometers northeast of the county seat, and has jurisdiction over 6 cooperatives, namely Xincheng, Ruidong, Wen Yi, Qiancun, Zhao Xi and Anxun. Jishan Township, located 30 kilometers southeast of the county seat, governs eight cooperatives, namely Yihe, Jishan, Hutou, Gewan, Fubei, Shang Tong, Shangnan and Shangbei. Yongbao Township, 35km east of the county seat, governs six clubs: Yongbao, Wu Shang, Ma Wu, Yuanji, Zhaoxian and Shangshang. Gui You Township is 35 kilometers away from the east of the county seat, and it has jurisdiction over six clubs, namely, Nan Mu, Mu Chen, Dong Chi, Xinzheng, Yu Ling and Xishi. Bailu Township, 45 kilometers east of the county seat, governs Fuping, Pingpi, Hanyang, Cixiao and Heshe. Duofu Township, 40 kilometers southeast of the county, has jurisdiction over 8 villages, namely Xincun, Nanzhe, Funan, Baocheng, Yongfeng, Changnan, Changbei and Xingguo. Huyang Township, 35 kilometers southeast of the county seat, has jurisdiction over six societies: North China, Changnan, Dabei, Xiaonan, Danan and Wushan. Quarry Town is in Huaqia Township, Huangchi Town is in Gushu Township, Daxin Town is in Yanfu Township, Danyang Town is in Wang Ling Township, and Cihu Town is in Cihu Township; Xue Dian is in Huangchi Township, Xinfeng City and Chuqiao City are in Yongbao Township, Wang Bo City is in Bailu Township, Jiangkou City and Huangshan City are in Shicheng Township, Shili City is in Yanfu Township, Guantouqiao City and Qingyou City are in Huaqia Township, Sanhu City is in Gui You Township, Qinggou City is in Duofu Township, Xinqiao City is in Yanfu Township, and Qingshan City is in Gushu Township.
In the 12th year of Qing Emperor Kangxi (1673), it administered 14 township, 14 town, 9 cities, and10/5 cooperative. The village community adopts the Ming system, and the towns and cities are adjusted as Danyang Town, Huangchi Town, Caishi Town, Cihu Town, Daxin Town, Xuezhen Town, Wang Bo Town, Xinzhen Town, tuqiao town Town, Wuxi Town, tanggou Town, Qingshan Town, Tingtou Town and Huajin Town. Chuqiao City, Shili City, Yunju City, Jiangkou City, Huangshan City, Guanduqiao City, Qingyou City, Xingou City and Sanhu City.
In July of the second year of Xuantong in Qing Dynasty (19 10), regional autonomy was implemented. The county is divided into 9 autonomous regions, with 8 autonomous offices in 4 towns and 3 townships. In the first district, the municipal autonomous office set up Chengguan Fu Xue Palace; The second district, Beizhen Autonomous Office, has a quarry town; The third district, Beixiang Autonomous Office, is located in Cihu Town; Fourth area, autonomous office of Dongzhen District, with Xue Zhen; The fifth district, Dongzhen Autonomous Office, has Wang Bo; The sixth and seventh districts, Southeast Town Autonomous Office, set up Tangnan Pavilion; The eighth district, Nanxiang Autonomous Office, has a steep door; Area 9, southwest autonomous office, set up a bridge. The four towns are Beizhen (quarrying), Dongzhen (Xue Zhen), Dongzhen (Wang Bo) and Southeast Town (Tangnange). The three townships are Beixiang (Cihu), Nanxiang (Niandou) and Southwest Township (Daiqiao). With an area of 57.8 square kilometers, Dangtu Jiang Xinzhou is the fourth continent of the Yangtze River. Located in the southwest of Maanshan City, facing Caishiji, a national scenic spot, across the river. It is understood that the relevant parties strive to start construction of the Maanshan Yangtze River Bridge with a total investment of 3.8 billion yuan in the second half of this year. According to the design scheme, Maanshan Yangtze River Bridge will fly from Jiang Xinzhou, with an exit in Jiang Xinzhou, and two auxiliary bridges will lead from Shang Zhou to Caishiji and Dangtu Jiaojia Village.