Caius Sallustius Crispus (86 - 34 BC) was a Roman historian who was well known for his works detailing very limited events. His style was direct and concise and his biographical treatments are particularly vivid. He was tribune of the people (52 BC) and praetor (46) and an avid supporter of Caesar. He was ejected from the senate in 50 BC, for adultery, but his support of Caesar during the civil war period was likely the main cause.
After his praetorship he served as governor of Numidia where he was accused of using his power for personal gain. Again, this was a likely consequence of supporting Caesar. He has several important works: the History of Rome covered the period between 78 and 67 BC, but unfortunately survives only in fragments. Bellum Catilinae details the Catlinarian Conspiracy and Bellum Jugurthinum is a valuable resource on the Jugurthan war.
History of Rome (survives in fragments)
Bellum Jugurthinum (War with Jugurtha)
Bellum Catilinae (War with Catiline)