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Yan Kingdom Northern Fortifications

Type Object Region Northeast China Time c. -500–-222

Yan's northern fortifications were border defenses built along Liaodong and Liaoxi, strengthened around 500 BCE as Yan expanded north;…

Timeline

  1. c. -500–-300Liaoxi Corridor · LiaoxiYan built earth-and-stone barriers and passes through the Liaoxi mountains and river valleys, controlling the chokepoints leading to the Liaodong plain and, with garrison posts, blocking the southward movement of northern nomadic and semi-nomadic peoples.
  2. c. -300–-222Xiangping (near the seat of Liaodong commandery) · LiaoyangYan forces pushed into Liaodong, establishing commanderies and counties at Xiangping and elsewhere and reinforcing forts, forming a long-range defensive line bordering the Korean peninsula and peoples north of the Yanshan range; Warring States Yan-style pottery and city-site remains are visible archaeologically.

Sources