燕国
(?
前257年～
前255年)
燕孝王（？─前255年），在前257年燕武成王死后继位，立姬喜为太子，在位三年而卒。
这期间，秦国灭东周，迁九鼎。这时期燕国可能筑有长城，自造阳至襄平（今辽宁辽阳），并设置了上谷、渔阳、右北平、辽西、辽东五郡。近人王国良推论“燕筑北长城，不在燕王喜时，就在孝王末年”。
During this period, the Eastern Zhou Qin destroyed, moved Jiuding. Yan State during this period may have built the Great Wall, made from sun to Xiangping (now Liaoning Liaoyang), and set up the Valley, Yu Yang, right Peking, western Liaoning, Liaodong Gogun. Neighbor Guoliang inference "Yan built Great Wall north, not Yan Wangxi time in the Xiao Wang Dynasty."