Yong-le: Year 7, Month 5, Day 17
29 Jun 1409
The chieftain Ban-lan and others who had been sent by Dao Xian-dai, the pacification superintendent of Laos, presented gold and silver utensils, rhinoceros and elephants and other goods in admission of guilt and to indicate a desire to fulfil tribute obligations. This was approved.
Zhong-yang Yan-jiu yuan Ming Shi-lu, volume 11, page 1203