Where Did Tacitus Get His Information From?

Where Did Tacitus Get His Information From? Sources of Tacitus. For the period from Augustus to Vespasian What sources did Tacitus use? Tacitus cites some of his sources directly, among them Cluvius Rufus, Fabius Rusticus and Pliny the Elder, who had written Bella Germaniae and a historical work which was the continuation of that of