The surviving portions of his two major works—the "Annals" (Latin: "Annales") and the "Histories" (Latin: "Historiae")—examine the reigns of the emperors Tiberius, Claudius, Nero, and those who reigned in the Year of the Four Emperors (69 AD). These two works span the history of the Roman Empire from the death of Augustus, in 14 AD, to 70 AD in the First Jewish–Roman War of 66–73. There are substantial lacunae in the surviving texts, including a gap in the "Annals" that is four books long.