《汉书·传·匈奴传上》
燕国也修筑了长城，从造阳一直到襄平，设置了上谷、渔阳、右北平、辽西、辽东郡来抵御胡人。
燕亦筑长城，自造阳至襄平，置上谷、渔阳、右北平、辽西、辽东郡以距胡。
Yan State also built the Great Wall, from Zaoyang to Xiangping, and set up Shanggu, Yuyang, Youbei Ping, Liaoxi, and Liaodong counties to resist the Hu people.