In 300 BCE Qin Kai, a general taken hostage from the state of Yan (whose capital "Ji" is now present-day Beijing), defeated the Donghu after having gained the esteem of the Donghu and learning their battle tactics.
Chiang Kai-shek | Qin | Qin Shi Huang | Kai Tak Airport | Qin Dynasty | Chiang Kai-Shek | Qin (state) | Qin dynasty | Kai Winding | Kai Hansen | Kai Eckhardt | Kai Althoff | Kai | Sun Hung Kai Properties | Qin Empire | Kudo-kai | Kai Province | Kai Islands | Kai Holst | Kai-Fu Lee | Kai En Tai | Former Qin | Chiang Kai-shek Memorial Hall | Risshō Kōsei Kai | RAF Kai Tak | Qin Kai | '''Qin'''huangdao | Qin Guangrong | Liang Kai | Kai province |
At the 2008 Olympics He Chong defeated an elite field of divers including, the two time world champion Alexandre Despatie, the 2006 world cup champion Qin Kai, and eight time Olympic medalist Dmitri Sautin.