They were all righteous people during the Spring and Autumn Period and the Warring States Period. In the era of the merger of princes, it was some heroes who dared to take risks for their own country or confidant. Their assassination can't profoundly change history, even if Jing Ke assassinated Qin Shihuang, it can't change the trend of Qin unification, but their actions are actually recorded in the history books and remembered by our descendants.