Source: Xiang Yu Ben Ji (Biography of Xiang Yu) in Shi Ji (Records of the Grand Historian) In 207 BC, near the end of the Qin dynasty, the Chu army led by Xiang Yu engaged a Qin force of 300,000 men, to break the siege of the Zhao land of Julu.
出處：《史記．項羽本記》1. 秦朝末年（公元前二○七年），楚軍在項羽的率領之下與三十萬秦軍交戰，以解救被秦軍圍困的趙地鉅鹿。