Idatius

Idatius (~400 - ~469 CE) was a Bishop in Aquae Flaviae in Gallaecia (now Portugal). He wrote Chronicon towards the end of his life which follows in the tradition of Jerome's continuation of Eusebius' Chronicle. Idatius' Chronicle starts in 379 CE. Burgess (1993) notes that Idatius used five major chronological systems (Jubilees, Spanish, Years of Abraham, Olympiads, and Regnal Years), there are variations between manuscripts, there are scribal errors, and there are chronological errors made by Idatius himself (e.g. with Olympiads).