《水经注·卷十九》
槐里县，就是古时的大丘邑，露王曾建都于此；秦时称为废丘，又叫舒丘。帝把这地方封给左中郎将皇甫篙，中平元年微服巡行，北到池阳，西到黄山，南在长杨狩猎，东在宜春游览。夜间漏下十刻，就出去和侍中、常侍、武骑、待诏及陇西、北地能骑射的良家子弟约会于殿下，所以有期门之名。
《东方朔传》称：武帝建元中微行，北至池阳，西至黄山，南猎长杨，东游宜春，夜漏十刻乃出，与侍中、常侍武骑、待诏及陇西、北地良家子能骑射者，期诸殿下，故有期门之号。
Huairi County was called the ancient Dqiu city. King Lu built the capital here. In the Qin Dynasty, it was called Feiqiu and Shugiu. The emperor granted this place to the General Left Zhonglang, Huangfugao. In the first year of Zhongping, the emperor traveled incognito, visiting Chiyang in the north, Huangshan in the west, hunting in Changyang in the south, and touring Yichun in the east. At night, ten moments passed, and he went out and met with the zhongshu, changshi, guards, the emperor's staff, and the good children of Longxi and Beidi who could ride and shoot at the palace, so he was called the Qimen.