Events By place Roman Empire Pertinax quells the mutiny of the British Roman legions. Perennis, his family and many others are executed for conspiring against Commodus. Asia Reign in India of Vasudeva, Kushan emperor. Zhi Yao, a Kushan Buddhist monk of Yuezhi ethnicity, translates Buddhist texts into the Chinese language during the Han Dynasty. By topic Arts and sciences Cleomedes discovers the refraction of light by the Earth's atmosphere. Chinese astronomers note in the Astrological… (More on 185)