Or Diodorus of Sicily (Greek Διόδωρος Σικελιώτης), Greek historian of the first century. C., born in Agirio (today Agira) in the Roman province of Sicily. St. Jerome (Chronica) places the maturity of Diodorus to 49 a. C., which agrees with the statements of the author himself. The earliest date mentioned by Diodorus is visiting Egypt in the 180th Olympiad (between 60 a. C. and 56 a.), Which was remembered by a crowd demanding the death penalty for a Roman citizen he had accidentally killed a cat, animal sacred to the ancient Egyptians (Bibliotheca historica 1.41, 1.83). The latest event is remembered by Diodorus revenge on Octavio Augusto César Tauromenium City (now Taormina), whose refusal to help the future emperor led to a naval defeat in 36 a. C. Diodorus shows no sign of having heard of the conversion of Roman Egypt in province-what happened in the 30 a. C., so surely his complete works published before that date. Diodorus states that spent thirty years in the composition of its history and undertook several hazardous trips through Europe and Asia to complete his historical research; however, modern critics have warned several surprising that an eyewitness errors should not have committed.