Tacitus studied rhetoric in Rome and rose to eminence as a pleader at the Roman Bar. In 77 AD he married the daughter of Agricola, conqueror of Britain, of whom he later wrote a biography. J. B. Rives received his PhD in Classics from Stanford University (1990) and taught at Columbia University and at York University in Toronto before moving to the University of North Carolina at Chapel Hill, where he is Kenan Eminent Professor of Classics. He is the author of Religion and Authority in Roman Carthage (1995) and Religion in the Roman Empire (2006), as well as numerous articles on aspects of religion in the Roman world. He has also published a translation, with introduction and commentary, of Tacitus' Germania (1999) and, for Penguin Classics, has revised Robert Graves' translation of Suetonius, The Twelve Caesars (2007). Harold Mattingley was born in 1884 and died in 1964. He is best known for his study of Roman coinage at the British Museum where he worked from 1920 to 1948. He wrote over four hundred articles and books and his Roman Imperial Civilization, first published when he was seventy-two, embodied the reflections of a lifetime devoted to the study of the Roman world.