 The historical county was probably established under the Qin, although some sources place its creation under the Han.Under the Qin, it is said to have formed part of the Eastern Commandery (t s "Dōng Jùn") of the Henan Area (t s "Hénán Dìqū").Under the Han, it formed part of Jiyin Commandery (t s "Jìyīn Jùn") and was also sometimes considered part of the princely realm of Liang.