Yunxi County

The county spans a total area of 3,509.6 square kilometres (1,355.1 sq mi), and has a population of 371,012 as of 2010. During the Spring and Autumn period, the area of present-day Yunxi County belonged to the Jun State. During the Warring States period, the area belonged to the Chu State. The area belonged to the Hanzhong Commandery during the Qin Dynasty, which was later absorbed by the Han Dynasty. During the Three Kingdoms period, the area was known as Pingyang County (simplified Chinese: 平阳县; traditional Chinese: 平陽縣; pinyin: Píngyáng Xiàn), and belonged to the Weixing Commandery of the Cao Wei. Subsequently, Pingyang County was taken by the Jin Dynasty, and was renamed. The area was subsequently placed under the Shangjin Commandery. The subsequent Song, Yuan, Ming, and Qing dynasties all reorganized the region.