the origin of Zigong city: Ziliujing and Gongjing are collectively called Panzhihua city: On February 5th, March 2th, 1965, the People's Committee of Panzhihua Special Zone was formally established, and it was renamed as Dukou city in April. There are tall and straight Panzhihua trees (also known as kapok and hero flowers) growing everywhere in the urban area of Dukou. When they bloom, they are beautiful and rugged, with no green leaves, and their temperament is excellent, which is deeply loved by the citizens. In January 1987, it was renamed Panzhihua City with the approval of the State Council, becoming the only city named after flowers in China. Luzhou City: During the reign of Emperor Jing of the Western Han Dynasty, Su Jia, the prime minister of Zhao, was appointed as the marquis of Jiangyang because he helped to cut the vassal. "Water Classic Note" says: "Jiangyang County pillow belt has double streams, according to Jiang and Luohui. In the sixth year of Emperor Jing of Han Dynasty, Zhao Xiang Su Jia was named as the Hou State. " In the sixth year of Emperor Jing of Han Dynasty (the first 151 years), it was the beginning of Luzhou's exact historical calendar and domain name. Jiang refers to today's Yangtze River, Yang refers to the north of the Yangtze River, Luo refers to today's Tuojiang River. It shows that the ancient Jiangyang land is located at the intersection of the north bank of the Yangtze River and Tuojiang River, which is now the central peninsula of Luzhou City. Luzhou, called Jiangyang, originated from the hometown of Fenghou more than 2, years ago. During the Southern and Northern Dynasties, Liang Wudi was in Datong for three years (537), and Luzhou was established for the need of rule. Duan Yucai said: "Liang set Luzhou, ruled the mouth of Mahu River, and took Mahu River as Lushui, hence the name' Luzhou'." Mahu River generally refers to a section of the Yangtze River from the Three Gorges to Jinsha River, also known as Lushui. Luzhou was built in Jiangyang and became famous from then on. The jurisdiction of Luzhou in the Southern Dynasties is roughly equivalent to the four counties and three districts in Luzhou today and the areas of Jiang 'an, Fushun and Xishui, Chishui, Renhuai, Bijie and Dafang counties in Guizhou. It is the place where the three rivers (Yangtze River, Tuojiang River, Minjiang River, Yongning River and Chishui River) are controlled and the southwest of the junction of Sichuan, Yunnan and Guizhou is controlled. At that time, the focus of Luzhou's jurisdiction was the vast Yunnan-Guizhou area south of the Yangtze River, which established the basic direction of Luzhou local government administration in later dynasties, that is, the main purpose was to colonize the territory and educate the border people. Historically, Zhou, mainly located in the border areas where Han people and ethnic minorities live together, has multiple functions, such as military pressure, administrative management, town defense and civilized education, such as Youzhou and Liangzhou. Luzhou is located in the junction of Miao, Yi and Han people in southwest China, and its establishment conforms to the political and historical conventions and the needs of governance, as well as the historical reality and geographical situation of Luzhou. Luzhou, built in Liang Wudi, has a jurisdiction roughly equivalent to the current provincial-level administrative region. Luzhou has a history of this organizational system since 1469, which shows that Luzhou has a unique historical setting, a profound political history and a strong political presence in Zhuo Gong.