Year 89 (LXXXIX) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. Events By place Europe Legio XIII Gemina's transferred to Dacia to help in the war against Decebalus. Aquincum (modern Budapest)'s founded. Asia First year of Yongyuan era of the Chinese Han Dynasty. June — The Han Chinese army under Dou Xian (d. 92), allied with the southern Xiongnu,'s victorious over the Northern Xiongnu in the Battle of Ikh Bayan. By topic Religio… (More on 89)