The Annals (Latin: Annales) is a history book by Tacitus

covering the reign of the four Roman Emperors succeeding to Caesar Augustus. The

parts of the work that survived from antiquity cover most of the reigns of

Tiberius and Nero.

The title Annals was probably not given by Tacitus, but derives from the fact

that he treated this history in a year-by-year form. The original title was most

likely Ab excessu divi Augusti, "Following the death of the divine

Augustus".

— Excerpted from Wikipedia, the free encyclopedia.