Xuan-de: Year 2, Month 9, Day 12
2 Oct 1427
The Da Dian Postal Relay Station was established under the Lu-chuan/Ping-mian Military and Civilian Pacification Superintendency in Yun-nan with an establishment of one postal relay station master. The native person Dao Peng-qie was appointed to the post. This was ordered in accordance with a memorial from the pacification superintendent Chou An-fa (Alt: Dao An-fa).
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 17, page 804