Duck which is on the market in midsummer is used as raw material, and the duck is killed to save blood and injected with sour vinegar. With tender ginger or bitter gourd as ingredients, the duck meat is stewed first and then cooked with slow fire, and the vinegar blood is poured before taking out of the pot. When the finished product is served on the table, the fragrance is refreshing and delicious. The vinegar-blood duck records the blood duck in Yongzhou, southern Hunan, and the vinegar-blood duck in Quanzhou, northern Guangxi, all originated from Lingling. According to the Spring and Autumn Form Map, today's quanzhou county in Guangxi belongs to Qingyang of Chu, and the Warring States period belongs to Changsha of Chu. In 221 BC (the 26th year of Qin Shihuang), Qin Shihuang made great efforts to unify the six countries and set up Lingling County (the earliest county in Guangxi today) in the southwest of Xianshui Town, quanzhou county, Guangxi, under the jurisdiction of Changsha County. In 124 BC (the third year of Yuan Ding in the Western Han Dynasty), Liu Che, Emperor Wu of the Han Dynasty, set up Taoyang County on the hillside behind Meitan Village in Yongsui Township, quanzhou county, and named Changsha as the Taoyang Hou. Since then, there has been the name of Taoyang in Quanzhou. In 111 BC, the site of Taoyang City was built (forever changing to a state). At this time, Lingling County and Taoyang County coexisted in the north and south of the whole state. In the same year, there was Lingling County (now in Fenghuang Township of Quanzhou), which governed Lingling and Taoyang counties. One hundred generations rise and fall. During the Jianwu period of the Eastern Han Dynasty, Lingling County moved into Quanling (the original Lingling area in Hunan Province, now it is Yongzhou City). During the Three Kingdoms, Wei, Shu and Wu were divided into Jingzhou, Lingling and Taoyang counties, and Guanyang County (now Guanyang County, Guilin City, Guangxi Province) was divided into Shu and later Wu. In 589 AD, after Emperor Wendi of Sui Dynasty unified the whole country, Lingling, Taoyang and Guanyang counties were abolished in the 1th year of Emperor Kaihuang of Sui Dynasty (59O AD). Because it is located at the source of Xiangjiang River, Xiangyuan County was set up in Zheqiao Village on the outskirts of the city. According to Kangxi's Records of Quanzhou, Xiangyuan County had a wide jurisdiction at that time, including Guanyang County, Ziyuan County, northern xing an, Dong 'an County and southern Yongzhou City in Guilin, in addition to today's quanzhou county area, which lasted for 366 years. This is why many people now regard Quanzhou people as Hunan people by their accents. It was not until the twenty-seventh year of Hongwu in the Ming Dynasty (AD 1394) that Quanzhou was transferred to Guilin, Guangxi. (That is to say, by 27, the whole state had been under the control of Guangxi for 613 years). "Lingling Blood Duck" began in the Tang Dynasty. When it comes to "Lingling Blood Duck", we have to mention Liu Zongyuan, a great writer who was demoted as Sima in Yongzhou (now Lingling, Hunan) in the Tang Dynasty. Liu Zongyuan (773-819) had a thick word. One of the eight masters in Tang and Song Dynasties. His ancestral home is Hedong (now Liujiaxiang, a western literature village in yongji city, Shanxi Province), and later he moved to Chang 'an (now Xi 'an, Shaanxi Province). Advocate the ancient prose movement in Tang Dynasty with Han Yu, and call it Han Liu. Because he was from Hedong, he was finally appointed as the secretariat of Liuzhou, so he was called Liu Hedong or Liu Liuzhou. Liu Zongyuan was born in Chang 'an, the capital city, in the eighth year of Daizong Dali (773). He was born in an official family, with few talents and high aspirations. In his early years, he was a scholar in the exam, and the text was based on gorgeous rhetoric. In the ninth year of Zhenyuan (793), he was a scholar, and in the fourteenth year, he was enrolled in the course of erudition and poetry, and was awarded the orthography of Jixian Hall. He was once a lieutenant in Lantian, then became an official in the DPRK, actively participated in the political reform of Wang Shuwen Group, and moved to the Li Department as a foreign minister. In September of Yongzhenyuan (85), the innovation failed, and Shaozhou was demoted to the secretariat. In November, it was demoted to Yongzhou (now Lingling, Hunan) Sima. In the tenth year of Yuanhe (815), he returned to the capital in the spring, and he was also the secretariat of Liuzhou, with outstanding achievements. Xian Zongyuan died in his post in the 14th year (819). Liu Zongyuan left more than 6 poems in his life, and his achievements in writing were greater than that in poetry. There are nearly 1 parallel essays, which are argumentative, sharp, satirical and pungent, full of fighting, and travel notes write landscapes, which are entrusted by many. Philosophical works include Tian Shuo, Tian Shi, Feudalism and so on. Liu Zongyuan's works were preserved by Liu Yuxi in the Tang Dynasty and compiled into collections. There is "Liuhe East Collection". In September, Tang Xianzong, Liu Zongyuan was demoted to Yongzhou because of the failure of political reform, which is now Yongzhou, Hunan. Yongzhou is located at the junction of Hunan and Guangdong (Guangxi, Guangdong). At that time, it was very lonely and it was a terrible place with few people. The fall of Yongzhou is 1 years, which is a major turning point in Liu Zongyuan's life. When he was in Beijing, he directly engaged in innovation activities. After arriving in Yongzhou, his struggle turned to the ideological and cultural field. Ten years in Yongzhou is a decade in which he continued to struggle. He extensively studied some important issues in philosophy, politics, history and literature from ancient times to the present, and wrote articles and books. Most of his famous works, such as Feudalism, Non-Mandarin, Heaven Pair and Six Contradictions, were completed in Yongzhou. Perhaps everyone is familiar with the well-known "Snake Catcher's Theory" written by him in Yongzhou. "The Snake Catcher's Theory" sharply and profoundly reveals the cruelty of taxation under feudal rule, reveals the sufferings and misfortunes of the broad masses of people, and shows the author's deep sympathy for the working masses and strong resentment against brutal rule. In life, Liu Zongyuan was also a gourmet and a tourist, who traveled all over Yongzhou and wrote Eight Notes on Yongzhou. The combination of Central Plains culture and Lingnan culture. Liu Zongyuan's ancestral home is Shanxi, and he was born in Shaanxi. Shanxi people and Shaanxi people like vinegar all over the country. I won't say much about Hunan people eating Chili. One day, Liu Zongyuan visited a village near the Xiangjiang River and ate at a farmer's house at noon. Because every household in the village kept ducks by the Xiangjiang River, the host family went to the river and picked a fat duck. Liu Zongyuan, a very careful man, also went to the kitchen to observe. He remembered that when someone slaughtered ducks in the past, he always spilled duck blood directly on the ground. He felt very sorry, and suddenly remembered the vinegar in his hometown, so he left a mind's eye this time and asked his host to pour duck blood into the vinegar and mix the blood evenly to prevent it from solidifying. According to the usual method of frying ducks, the host first pours oil into a red pot, sautes the ducks, dries the water and puts a little wine, soy sauce and salt; Then put a small bowl of water to drown the ducks! Cover the pot and add local pepper, ginger and garlic when there is a little water left. Liu Zongyuan saw that it was time to signal the host to pour the vinegar blood in and continue to stir fry with the vinegar blood. However, soon after, a spicy smell came straight to the nose, only to see that the food was mushy and purple, but it tasted more delicious than usual. During the dinner, the host came up to Lingling Shuijiu to greet the guests, only to see that everyone ate it and praised it again and again: "What a fried duck with vinegar and blood." Later, the host knew that this person was the famous Liu Zongyuan, and the practice of fried duck with vinegar and blood also spread. Because it is located in Lingling, also known as "Lingling Blood Duck", it was changed to "Yongzhou Blood Duck" and "Lingling Blood Duck" became famous all over the world. By the Ming Dynasty, Lingling County (quanzhou county) was placed under the jurisdiction of Guilin, Guangxi, and the practice of frying ducks with vinegar blood was renamed as "Guilin blood duck" and "Quanzhou vinegar blood duck". Smart people in Quanzhou have also created their own "Bitter Melon Blood Duck", "Bean Blood Duck", "Slime Bean Blood Duck", "Peanut Blood Duck" and "Sesame Blood Duck" and so on. Later, the "Lingling Blood Duck" was brought to all directions by Hunan people who ventured into rivers and lakes, so there were "Jiangxi Lotus Fried Blood Duck", Hunan Xinning Blood Sauted Duck (Poured Blood Duck), Hunan Xintian Blood Duck, Hunan Dongan Blood Duck and Guangxi Nandan Blood Duck and so on. It is different here. Later, with the strong recommendation of Zeng Guofan, a minister in the late Qing Dynasty, "Lingling Blood Duck" became the royal menu of the court in the late Qing Dynasty. As a result, "Lingling blood duck" was famous for a while, and everyone knows it!