Wannian County, Jiangxi Province belongs to Shangrao City, Jiangxi Province. Wannian County, located in the northeast of Jiangxi Province and the southeast bank of Poyang Lake, uses Gan dialect. The landform is characterized by "six mountains, one water and two fields", with Yiyang in the east, Ganyu in the west, yingtan in the south and Poyang and Leping in the north. It belongs to subtropical monsoon humid climate. Wannian county covers an area of 1 140.76 square kilometers and governs 6 towns, 6 townships and 2 administrative committees. Wannian County has Shennong Garden, Longquan Lake, Xianren Cave and other scenic spots, and is known as the "land of plenty" and the hometown of Gong Mi.

The perpetual calendar has a long history. As early as the late Paleolithic period, there were ancient human activities in this land. There were tribes and villages in Shang and Zhou Dynasties. During the Spring and Autumn Period and the Warring States Period, it was under the jurisdiction of Wu, Yue and Chu. Qin and Han Dynasties belong to Fan County and County. Wu, Jin and Sui are Poyang and Yugan counties. After the Tang Dynasty, Poyang, Yugan, Leping and Guixi belonged to four counties. In the seventh year of Zheng De in Ming Dynasty (15 12), a county was established in Poyang, Yuyu, leye county and Guibian, which was named after the county was ruled by the grandson of Wannian Peak. When the county was established, it was placed under the Raozhou government. Qing, Ji Shang.