Battle of Changping
In the "Records of the Grand Historian", the great Han dynasty historian Sima Qian criticizes Lord Pingyuan for his role in accepting the gift of Shangdang from the state of Han, which led to the Battle of Changping and the calamitous defeat of Zhao at the hand of Qin. However, historian Qiao Zhou rejects Sima Qian's assessment, and blames King Xiaocheng of Zhao for the defeat.