Tōngxǔ

Tongxu lies on the eastern Henan plain south of Kaifeng. A town called Tongxu was established in the early Northern Song, and Xianping County was created there in 1002. Under the Jin the county took the name Tongxu in 1189, distinguishing it from another Xianping. These earlier changes established the county whose name continued into later centuries.

Under the Yuan it belonged to Bianliang circuit, and during the Ming and Qing it was administered under Kaifeng prefecture. Its history as a county was thus closely tied to the nearby regional centre, while its villages occupied the agricultural plain of eastern Henan.