Year 15 (XV) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. Events By place Roman Empire Emona (currently Ljubljana)'s founded by Legio XV Apollinaris. Germanicus fights a drawn battle with Arminius in the Teutoburg Forest. Legio XXI Rapax's stationed in Regensburg. In Rome, the selection of civil servants passes from the people to the Emperor and the Senate. Valerius Gratus's appointed Prefect of Iudaea. By topic Arts and Sciences Bio… (More on 15)