Getica

De origine actibusque Getarum ("The Origin and Deeds of the Getae/Goths"), or the Getica, written in Late Latin by Jordanes (or Iordanes/Jornandes) in or shortly after 551 AD, claims to be a summary of a voluminous account by Cassiodorus of the origin and history of the Gothic people, which is now lost. However, the extent to which Jordanes actually used the work of Cassiodorus is unknown. It is significant as the only remaining contemporaneous resource that gives the full story of the origin and history of the Goths. Another aspect of this work is its information about the early history and the customs of Slavs.

The Getica begins with a geography/ethnography of the North, especially of Scandza (16-24). He lets the history of the Goths commence with the emigration of Berig with three ships from Scandza to Gothiscandza (25, 94), in a distant past. In the pen of Jordanes (or Cassiodorus), Herodotus' Getian demi-god Zalmoxis becomes a king of the Goths (39). Jordanes tells how the Goths sacked "Troy and Ilium" just after they had recovered somewhat from the war with Agamemnon (108). They are also said to have encountered the Egyptian pharaoh Vesosis (47). The less fictional part of Jordanes' work begins when the Goths encounter Roman military forces in the 3rd century AD. The work concludes with the defeat of the Goths by the Byzantine general Belisarius. Jordanes concludes the work by stating that he writes to honour those who were victorious over the Goths after a history of 2030 years.

Because the original work of Cassiodorus has not survived, the work of Jordanes is one of the most important sources for the period of the migration of the European tribes, and the Ostrogoths and Visigoths in particular, from the 3rd century CE. Cassiodorus had claimed to have the Gothic "folk songs" — carmina prisca (Latin) — as an important source; recent scholarship regards this as highly questionable. Its main purpose was to give the Gothic ruling class a glorious past, to match the past of the senatorial families of Roman Italy.

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