Yong-le: Year 14, Month 7, Day 10
2 Aug 1416
In Jiao-zhi, the Gold-mining Offices at Wang River Commandery in Yan Subprefecture, and at Lin-an Commandery in Yi-an Prefecture, were re-established. Previously, as the man people had been unsettled, the two offices were closed down. At this time, as the bandits had been pacified, the offices were re-established.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 13, page 1939