SECOND EDITION REVISED BY JOAQUIN GARCIA ALVAREZ Gayo Salustio Crispo (86-34 BC) is a decisive author in the development of Latin historiography: he was the first historian recognized as classic among the Romans had an immense influence in very diverse writers and after Cicero is the most cited Latin prose author. If even the record of the events in the Roman Empire had been in charge of the analysts who consigned the data without more in their chronic escuetas Salustio composed a coherent story trying to understand the meaning of the events the connections between these and the general lines of the set. This volume contains all that of his work has come to us: two monographs Conjugation of Catiline and War of Jugurta and fragments of his main writing a history of Rome that covers the years 78 to 67 BC.