Cháng Prefecture
# Cháng Prefecture

Changzhou or Chang Prefecture was a zhou (prefecture) in imperial China, centering on modern Changzhou, Jiangsu, China. It existed (intermittently) from 589 until 1277, when the Yuan dynasty renamed it Changzhou Route.

The modern prefecture-level city Changzhou, created in 1949, retains its name.

## Geography

The administrative region of Chang Prefecture in the Tang dynasty was in modern southern Jiangsu directly to the north of Lake Tai. It probably includes parts of modern:

* Under the administration of Changzhou:
   * Changzhou
* Under the administration of Wuxi:
   * Wuxi
   * Jiangyin
   * Yixing
