Periochae

Livy's History of Rome, sometimes referred to as Ab Urbe Condita, is a monumental history of ancient Rome, written in Latin, between 27 and 9 BC. by the historian Titus Livius, or "Livy", as he is usually known in English. The work covers the period from the legends concerning the arrival of Aeneas and the refugees from the fall of Troy, to the city's founding in 753 BC, the expulsion of the Kings in 509 BC, and down to Livy's own time, during the reign of the emperor Augustus. The last event covered by Livy is the death of Drusus in 9 BC. About 25% of the work survives.

The History of Rome originally comprised 142 "books", thirty-five of which — Books 1–10 with the Preface and Books 21–45 — still exist in reasonably complete form. Damage to a manuscript of the 5th century resulted in large gaps (lacunae) in Books 41 and 43–45 (small lacunae exist elsewhere); that is, the material is not covered in any source of Livy's text.

A fragmentary palimpsest of the 91st book was discovered in the Vatican Library in 1772, containing about a thousand words, and several papyrus fragments of previously unknown material, much smaller, have been found in Egypt since 1900, most recently about 40 words from Book 11, unearthed in the 1980s.

Livy was abridged, in antiquity, to an epitome, which survives for Book 1, but was itself abridged in the fourth century into the so-called Periochae, which is simply a list of contents. The Periochae survive for the entire work, except for books 136 and 137. In Oxyrhynchus, a similar summary of books 37–40 and 48–55 was found on a roll of papyrus that is now in the British Museum classified as P.Oxy.IV 0668. There is another fragment, named P.Oxy.XI 1379, which represents a passage from the first book (I, 6) and that shows a high level of correctness. However the Oxyrhynchus Epitome is damaged and incomplete.

The entire work covers the following periods:

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