《水经注·卷二十一》
酮阳县有葛陵城，建武十五年，把这地方改封给安成侯姚丹，立为侯国。
县有葛陵城，建武十五年，更封安城侯铫丹为侯国。
Ketongyang County has Geling City. In the fifteenth year of Jianwu, this place was renamed and granted to Yao Dan, the Marquis of Anchong, and was established as a fiefdom.