Ancient historical sources testify agricultural economy among the Parthini, who are attested to have cultivated corn in Roman times. During the Great Roman Civil War the Parthini were obliged to deliver their corn supply for Pompey's troops. The situation changed with Caesar's arrival in Illyria. Once he had landed in Palaeste on the Ceraunian Mountains, the Illyrian communities, which were garrisoned by Pompey and the Senate, welcomed Caesar.