In the later years of the Warring States Period, the King of Qin quickened his pace of annihilating the other six states. Now that the State of Han had already been destroyed, Qin was now attacking Zhao, and Yan would be its next target.

Prince Dan of Yan was so worried he decided to send someone to kidnap the King of Qin. Dan found a warrior called Jing Ke and asked him to meet the King of Qin bringing the head of Fan Yuqi, a traitor of Qin, and the map of an area of Yan.

When Jing Ke met the King of Qin, he slowly spread out the map and a dagger appeared. Jing took the dagger in one hand and the King of Qin in the other. The King of Qin struggled so hard his sleeve was torn apart and managed to escape. Jing Ke was killed after his attempt failed.

The King of Qin defeated Yan and the other states and unified China. 

Chen Xianchun is a professor at Beijing Language and Culture University who has engaged in the teaching of Chinese as a foreign language since 1975, equipped with rich Chinese teaching experience. Professor Chen has made profound research into the teaching of Chinese reading and has published, in addition to more than 20 academic papers, many monographs and textbooks such as Teaching Reading and Psychology, Typical Characters and Events in Chinese Culture, A Primer on Modern Chinese Reading, An Intensive Chinese Course, and Read This Way.