2. Xuancheng is called Xuan for short, and it was called Wanling and Xuanzhou in ancient times. It is a prefecture-level city in Anhui Province and one of the 27 cities in the central area of the Yangtze River Delta. It is located in the southeast of Anhui province, at the junction of Jiangsu, Zhejiang and Anhui provinces. It is a wing of Wanjiang City Belt to undertake industrial transfer demonstration zone, a member city of Nanjing Metropolitan Area, an observer city of Hangzhou Metropolitan Area, a central city of G60 Science and Technology Corridor and the hometown of Four Treasures of the Study, China. Xuancheng has been known as the land of fish and rice in the south of the Yangtze River since ancient times. It has a history of more than 2,000 years since the county was founded in the Western Han Dynasty. Xuancheng has been a big county east of the Yangtze River since the Western Han Dynasty. Jin Yongjia period was the first cultural prosperity, which lasted for six dynasties. Four Treasures of the Study culture, emblem culture, poetry culture, folk culture, food culture, religious culture and clan culture coexist in China, which is known as "Xuancheng is the hometown of poets since ancient times" and "Xuancheng is the first place of humanities in Shangjiang".