Histories is a Roman historical chronicle by Tacitus. Written c. 100–110, its complete form covered c. 69–96, a period which includes the Year of Four Emperors following the downfall of Nero, as well as the period between the rise of the Flavian dynasty under Vespasian and the death of Domitian. However, the surviving portion of the work only reaches the year 70 and the very beginning of the reign of Vespasian.

Publius Cornelius Tacitus, known simply as Tacitus, was a Roman historian and politician. Tacitus is widely regarded as one of the greatest Roman historians by modern scholars.