The Complete Tacitus Collection Author:Tacitus Tacitus was a Roman senator and historian. Tactitus' major works were The Annals and The Histories which covered the Roman Empire from 14 AD - 70 AD. The Complete Tacitus Collection includes the following works: The Annals, The Histories, Germania, Agricola, and A Dialogue Concerning Oratory, or the Causes of Corrupt Eloquence.