《宋史·本纪·卷二十一》
十一月初六，设置知客省、引进、四方馆、东西上间门事。
十一月己未，置知客省、引进、四方馆、东西上阁门事。
On November 6, the Office of the Hospitality Bureau, the Office of the Introducer, the Office of the Four Directions, and the Office of the East and West Above were established.