Jing Ke assassinating the King of Qin was a famous historical event, but its authenticity was controversial. There is no conclusive evidence in history that Jing Ke assassinated the King of Qin, but most historians believe that this event really happened. The story of Jing Ke assassinating the King of Qin was first recorded in historical books such as the Records of the Historian and the Warring States Strategy. These historical records were relatively reliable. Although these historical books did not clearly record the specific details of Jing Ke assassinating the King of Qin, some reasonable conclusions could be drawn from other evidence and deductions. Some historians believe that there are many loopholes in the authenticity of Jing Ke assassinating the King of Qin because the story lacks sufficient historical background and evidence, and many details and descriptions do not conform to historical facts. For example, Jing Ke's identity and motive, the health condition and mobility of the king of Qin, and other issues could lead to this incident being exaggerated or fabricated. Jing Ke assassinating the king of Qin was a controversial historical event. Although there was no conclusive evidence to prove that it really happened, some reasonable conclusions could be drawn from other evidence and inference.