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Dendrochronology

Dendrochronology (or tree-ring dating) is the scientific method of dating tree rings (also called growth rings) to the exact year they were formed in a tree. As well as dating them, this can give data for dendroclimatology, the study of climate and atmospheric conditions during different periods in history from the wood of old trees. Dendrochronology derives from the Ancient Greek dendron (δένδρον), meaning "tree", khronos (χρόνος), meaning "time", and -logia (-λογία), "the study of".

Dendrochronology is useful for determining the precise age of samples, especially those that are too recent for radiocarbon dating, which always produces a range rather than an exact date. However, for a precise date of the death of the tree a full sample to the edge is needed, which most trimmed timber will not provide. It also gives data on the timing of events and rates of change in the environment (most prominently climate) and also in wood found in archaeology or works of art and architecture, such as old panel paintings. It is also used as a check in radiocarbon dating to calibrate radiocarbon ages.

New growth in trees occurs in a layer of cells near the bark. A tree's growth rate changes in a predictable pattern throughout the year in response to seasonal climate changes, resulting in visible growth rings. Each ring marks a complete cycle of seasons, or one year, in the tree's life. As of 2020, securely dated tree-ring data for some regions in the Northern Hemisphere are available going back 13,910 years. A new method is based on measuring variations in oxygen isotopes in each ring, and this 'isotope dendrochronology' can yield results on samples which are not suitable for traditional dendrochronology due to too few or too similar rings. Some regions have "floating sequences", with gaps which mean that earlier periods can only be approximately dated. As of 2024, only three areas have continuous sequences going back to prehistoric times, the foothills of the Northern Alps, the southwestern United States and the British Isles. Miyake events, which are major spikes in cosmic rays at known dates, are visible in trees rings and can fix the dating of a floating sequence.

History
The Greek botanist Theophrastus (c. 371 – c. 287 BC) first mentioned that the wood of trees has rings. In his Trattato della Pittura (Treatise on Painting), Leonardo da Vinci (1452–1519) was the first person to mention that trees form rings annually and that their thickness is determined by the conditions under which they grew. In 1737, French investigators Henri-Louis Duhamel du Monceau and Georges-Louis Leclerc de Buffon examined the effect of growing conditions on the shape of tree rings. They found that in 1709, a severe winter produced a distinctly dark tree ring, which served as a reference for subsequent European naturalists. In the U.S., Alexander Catlin Twining (1801–1884) suggested in 1833 that patterns among tree rings could be used to synchronize the dendrochronology of various trees and thereby to reconstruct past climates across entire regions. The English polymath Charles Babbage proposed using dendrochronology to date the remains of trees in peat bogs or even in geological strata (1835, 1838).

During the latter half of the nineteenth century, the scientific study of tree rings and the application of dendrochronology began. In 1859, the German-American Jacob Kuechler (1823–1893) used crossdating to examine oaks (Quercus stellata) in order to study the record of climate in western Texas. In 1866, the German botanist, entomologist, and forester Julius Theodor Christian Ratzeburg (1801–1871) observed the effects on tree rings of defoliation caused by insect infestations. By 1882, this observation was already appearing in forestry textbooks. In the 1870s, the Dutch astronomer Jacobus Kapteyn (1851–1922) was using crossdating to reconstruct the climates of the Netherlands and Germany. In 1881, the Swiss-Austrian forester Arthur von Seckendorff-Gudent (1845–1886) was using crossdating. From 1869 to 1901, Robert Hartig (1839–1901), a German professor of forest pathology, wrote a series of papers on the anatomy and ecology of tree rings. In 1892, the Russian physicist Fedor Nikiforovich Shvedov (Фёдор Никифорович Шведов; 1841–1905) wrote that he had used patterns found in tree rings to predict droughts in 1882 and 1891.

During the first half of the twentieth century, the astronomer A. E. Douglass founded the Laboratory of Tree-Ring Research at the University of Arizona. Douglass sought to better understand cycles of sunspot activity and reasoned that changes in solar activity would affect climate patterns on earth, which would subsequently be recorded by tree-ring growth patterns (i.e., sunspots → climate → tree rings).

Growth rings
Horizontal cross sections cut through the trunk of a tree can reveal growth rings, also referred to as tree rings or annual rings. Growth rings result from new growth in the vascular cambium, a layer of cells near the bark that botanists classify as a lateral meristem; this growth in diameter is known as secondary growth. Visible rings result from the change in growth speed through the seasons of the year; thus, critical for the title method, one ring generally marks the passage of one year in the life of the tree. Removal of the bark of the tree in a particular area may cause deformation of the rings as the plant overgrows the scar.

The rings are more visible in trees which have grown in temperate zones, where the seasons differ more markedly. The inner portion of a growth ring forms early in the growing season, when growth is comparatively rapid (hence the wood is less dense) and is known as "early wood" (or "spring wood", or "late-spring wood" ); the outer portion is the "late wood" (sometimes termed "summer wood", often being produced in the summer, though sometimes in the autumn) and is denser.

Many trees in temperate zones produce one growth-ring each year, with the newest adjacent to the bark. Hence, for the entire period of a tree's life, a year-by-year record or ring pattern builds up that reflects the age of the tree and the climatic conditions in which the tree grew. Adequate moisture and a long growing season result in a wide ring, while a drought year may result in a very narrow one.

Direct reading of tree ring chronologies is a complex science, for several reasons. First, contrary to the single-ring-per-year paradigm, alternating poor and favorable conditions, such as mid-summer droughts, can result in several rings forming in a given year. In addition, particular tree species may present "missing rings", and this influences the selection of trees for study of long time-spans. For instance, missing rings are rare in oak and elm trees.

Critical to the science, trees from the same region tend to develop the same patterns of ring widths for a given period of chronological study. Researchers can compare and match these patterns ring-for-ring with patterns from trees which have grown at the same time in the same geographical zone (and therefore under similar climatic conditions). When one can match these tree-ring patterns across successive trees in the same locale, in overlapping fashion, chronologies can be built up—both for entire geographical regions and for sub-regions. Moreover, wood from ancient structures with known chronologies can be matched to the tree-ring data (a technique called cross-dating), and the age of the wood can thereby be determined precisely. Dendrochronologists originally carried out cross-dating by visual inspection; more recently, they have harnessed computers to do the task, applying statistical techniques to assess the matching. To eliminate individual variations in tree-ring growth, dendrochronologists take the smoothed average of the tree-ring widths of multiple tree-samples to build up a ring history, a process termed replication. A tree-ring history whose beginning- and end-dates are not known is called a floating chronology. It can be anchored by cross-matching a section against another chronology (tree-ring history) whose dates are known.

A fully anchored and cross-matched chronology for oak and pine in central Europe extends back 12,460 years, and an oak chronology goes back 7,429 years in Ireland and 6,939 years in England. Comparison of radiocarbon and dendrochronological ages supports the consistency of these two independent dendrochronological sequences. Another fully anchored chronology that extends back 8,500 years exists for the bristlecone pine in the Southwest US (White Mountains of California).

Dendrochronological equation

The dendrochronological equation defines the law of growth of tree rings. The equation was proposed by Russian biophysicist Alexandr N. Tetearing in his work "Theory of populations" in the form:

$$\Delta L(t) = \frac{1}{k_v\, \rho^{\frac{1}{3}}} \, \frac{d\left(M^{\frac{1}{3}}(t)\right)}{dt},$$

where ΔL is width of annual ring, t is time (in years), ρ is density of wood, kv is some coefficient, M(t) is function of mass growth of the tree.

Ignoring the natural sinusoidal oscillations in tree mass, the formula for the changes in the annual ring width is:

$$\Delta L(t) = -\frac{ c_1 e^{-a_1 t}+ c_2 e^{-a_2 t} }{3 k_v \rho^{\frac{1}{3}} \left(c_4+ c_1 e^{-a_1 t}+ c_2 e^{-a_2 t}\right)^{\frac{2}{3}}}$$

where c1, c2, and c4 are some coefficients, a1 and a2 are positive constants.

The formula is useful for correct approximation of samples data before data normalization procedure. The typical forms of the function ΔL(t) of annual growth of wood ring are shown in the figures.

Sampling and dating
Dendrochronology allows specimens of once-living material to be accurately dated to a specific year. Dates are often represented as estimated calendar years B.P., for before present, where "present" refers to 1 January 1950.

Timber core samples are sampled and used to measure the width of annual growth rings; by taking samples from different sites within a particular region, researchers can build a comprehensive historical sequence. The techniques of dendrochronology are more consistent in areas where trees grew in marginal conditions such as aridity or semi-aridity where the ring growth is more sensitive to the environment, rather than in humid areas where tree-ring growth is more uniform (complacent). In addition, some genera of trees are more suitable than others for this type of analysis. For instance, the bristlecone pine is exceptionally long-lived and slow growing, and has been used extensively for chronologies; still-living and dead specimens of this species provide tree-ring patterns going back thousands of years, in some regions more than 10,000 years. Currently, the maximum span for fully anchored chronology is a little over 11,000 years B.P.

IntCal20 is the 2020 "Radiocarbon Age Calibration Curve", which provides a calibrated carbon 14 dated sequence going back 55,000 years. The most recent part, going back 13,900 years, is based on tree rings.

Reference sequences
European chronologies derived from wooden structures initially found it difficult to bridge the gap in the fourteenth century when there was a building hiatus, which coincided with the Black Death,. However, there do exist unbroken chronologies dating back to prehistoric times, for example the Danish chronology dating back to 352 BC.

Given a sample of wood, the variation of the tree-ring growths not only provides a match by year, but can also match location because climate varies from place to place. This makes it possible to determine the source of ships as well as smaller artifacts made from wood, but which were transported long distances, such as panels for paintings and ship timbers.

Miyake events
Miyake events, such as the ones in 774-775 and 993-994, can provide fixed reference points in an unknown time sequence as they are due to cosmic radiation. As they appear as spikes in carbon 14 in tree rings for that year all round the world, they can be used to date historical events to the year. For example, wooden houses in the Viking site at L'Anse aux Meadows in Newfoundland were dated by finding the layer with the 993 spike, which showed that the wood is from a tree felled in 1021. Researchers at the University of Bern have provided exact dating of a floating sequence in a Neolithic settlement in northern Greece by tying it to a spike in cosmogenic radiocarbon in 5259 BC.

Frost rings
Frost ring is a term used to designate a layer of deformed, collapsed tracheids and traumatic parenchyma cells in tree ring analysis. They are formed when air temperature falls below freezing during a period of cambial activity. They can be used in dendrochronology to indicate years that are colder than usual.

Radiocarbon dating calibration
Dates from dendrochronology can be used as a calibration and check of radiocarbon dating. This can be done by checking radiocarbon dates against long master sequences, with Californian bristle-cone pines in Arizona being used to develop this method of calibration as the longevity of the trees (up to c.4900 years) in addition to the use of dead samples meant a long, unbroken tree ring sequence could be developed (dating back to c. 6700 BC). Additional studies of European oak trees, such as the master sequence in Germany that dates back to c. 8500 BC, can also be used to back up and further calibrate radiocarbon dates.

Climatology
Dendroclimatology is the science of determining past climates from trees primarily from the properties of the annual tree rings. Other properties of the annual rings, such as maximum latewood density (MXD) have been shown to be better proxies than simple ring width. Using tree rings, scientists have estimated many local climates for hundreds to thousands of years previous.

Art history
Dendrochronology has become important to art historians in the dating of panel paintings. However, unlike analysis of samples from buildings, which are typically sent to a laboratory, wooden supports for paintings usually have to be measured in a museum conservation department, which places limitations on the techniques that can be used.

In addition to dating, dendrochronology can also provide information as to the source of the panel. Many Early Netherlandish paintings have turned out to be painted on panels of "Baltic oak" shipped from the Vistula region via ports of the Hanseatic League. Oak panels were used in a number of northern countries such as England, France and Germany. Wooden supports other than oak were rarely used by Netherlandish painters.

Since panels of seasoned wood were used, an uncertain number of years has to be allowed for seasoning when estimating dates. Panels were trimmed of the outer rings, and often each panel only uses a small part of the radius of the trunk. Consequently, dating studies usually result in a "terminus post quem" (earliest possible) date, and a tentative date for the arrival of a seasoned raw panel using assumptions as to these factors. As a result of establishing numerous sequences, it was possible to date 85–90% of the 250 paintings from the fourteenth to seventeenth century analysed between 1971 and 1982; by now a much greater number have been analysed.

A portrait of Mary, Queen of Scots in the National Portrait Gallery, London was believed to be an eighteenth-century copy. However, dendrochronology revealed that the wood dated from the second half of the sixteenth century. It is now regarded as an original sixteenth-century painting by an unknown artist.

On the other hand, dendrochronology was applied to four paintings depicting the same subject, that of Christ expelling the money-lenders from the Temple. The results showed that the age of the wood was too late for any of them to have been painted by Hieronymus Bosch.

While dendrochronology has become an important tool for dating oak panels, it is not effective in dating the poplar panels often used by Italian painters because of the erratic growth rings in poplar.

The sixteenth century saw a gradual replacement of wooden panels by canvas as the support for paintings, which means the technique is less often applicable to later paintings. In addition, many panel paintings were transferred onto canvas or other supports during the nineteenth and twentieth centuries.

Archaeology
The dating of buildings with wooden structures and components is also done by dendrochronology; dendroarchaeology is the term for the application of dendrochronology in archaeology. While archaeologists can date wood and when it was felled, it may be difficult to definitively determine the age of a building or structure in which the wood was used; the wood could have been reused from an older structure, may have been felled and left for many years before use, or could have been used to replace a damaged piece of wood. The dating of building via dendrochronology thus requires knowledge of the history of building technology. Many prehistoric forms of buildings used "posts" that were whole young tree trunks; where the bottom of the post has survived in the ground these can be especially useful for dating.

Examples:
 * The Post Track and Sweet Track, ancient timber trackways in the Somerset levels, England, have been dated to 3838 BC and 3807 BC.
 * Navan Fort where in Prehistoric Ireland a large structure was built with more than two hundred posts. The central oak post was felled in 95 BC.
 * The Fairbanks House in Dedham, Massachusetts. While the house had long been claimed to have been built c. 1640 (and being the oldest wood-framed house in North America), core samples of wood taken from a summer beam confirmed the wood was from an oak tree felled in 1637–8, as wood was not seasoned before use in building at that time in New England. An additional sample from another beam yielded a date of 1641, thus confirming the house had been constructed starting in 1638 and finished sometime after 1641.
 * The burial chamber of Gorm the Old, who died c. 958, was constructed from wood of timbers felled in 958.
 * Veliky Novgorod, where, between the tenth and the fifteenth century, numerous consecutive layers of wooden log pavement have been placed over the accumulating dirt.

Measurement platforms, software, and data formats
There are many different file formats used to store tree ring width data. Effort for standardisation was made with the development of TRiDaS. Further development led to the database software Tellervo, which is based on the new standard format whilst being able to import lots of different data formats. The desktop application can be attached to measurement devices and works with the database server that is installed separately.

Continuous sequence
Bard et al write in 2023: "The oldest tree-ring series are known as floating since, while their constituent rings can be counted to create a relative internal chronology, they cannot be dendro-matched with the main Holocene absolute chronology. However, 14C analyses performed at high resolution on overlapped absolute and floating tree-rings series enable one to link them almost absolutely and hence to extend the calibration on annual tree rings until ≈13 900 cal yr BP."

Related chronologies
Herbchronology is the analysis of annual growth rings (or simply annual rings) in the secondary root xylem of perennial herbaceous plants. Similar seasonal patterns also occur in ice cores and in varves (layers of sediment deposition in a lake, river, or sea bed). The deposition pattern in the core will vary for a frozen-over lake versus an ice-free lake, and with the fineness of the sediment. Sclerochronology is the study of algae deposits.

Some columnar cacti also exhibit similar seasonal patterns in the isotopes of carbon and oxygen in their spines (acanthochronology). These are used for dating in a manner similar to dendrochronology, and such techniques are used in combination with dendrochronology, to plug gaps and to extend the range of the seasonal data available to archaeologists and paleoclimatologists.

A similar technique is used to estimate the age of fish stocks through the analysis of growth rings in the otolith bones.

title: Dendrochronology


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Ovid

Publius Ovidius Naso (20 March 43 BC – AD 17/18), known in English as Ovid, was a Roman poet who lived during the reign of Augustus. He was a younger contemporary of Virgil and Horace, with whom he is often ranked as one of the three canonical poets of Latin literature. The Imperial scholar Quintilian considered him the last of the Latin love elegists. Although Ovid enjoyed enormous popularity during his lifetime, the emperor Augustus exiled him to Tomis, the capital of the newly-organised province of Moesia, on the Black Sea, where he remained for the last nine or ten years of his life. Ovid himself attributed his banishment to a "poem and a mistake", but his reluctance to disclose specifics has resulted in much speculation among scholars.

Ovid is most famous for the Metamorphoses, a continuous mythological narrative in fifteen books written in dactylic hexameters. He is also known for works in elegiac couplets such as Ars Amatoria ("The Art of Love") and Fasti. His poetry was much imitated during Late Antiquity and the Middle Ages, and greatly influenced Western art and literature. The Metamorphoses remains one of the most important sources of classical mythology today.

Life
Ovid wrote more about his own life than most other Roman poets. Information about his biography is drawn primarily from his poetry, especially Tristia 4.10, which gives a lengthy autobiographical account of his life. Other sources include Seneca the Elder and Quintilian.

Birth, early life, and marriage
Ovid was born in the Paelignian town of Sulmo (modern-day Sulmona, in the province of L'Aquila, Abruzzo), in an Apennine valley east of Rome, to an important equestrian family, the gens Ovidia, on 20 March 43 BC – a significant year in Roman politics. Along with his brother, who excelled at oratory, Ovid was educated in rhetoric in Rome under the teachers Arellius Fuscus and Porcius Latro.

His father wanted him to study rhetoric so that he might practice law. According to Seneca the Elder, Ovid tended to the emotional, not the argumentative pole of rhetoric. Following the death of his brother at 20 years of age, Ovid renounced law and travelled to Athens, Asia Minor, and Sicily. He held minor public posts, as one of the tresviri capitales, as a member of the Centumviral court and as one of the decemviri litibus iudicandis, but resigned to pursue poetry probably around 29–25 BC, a decision of which his father apparently disapproved.

Ovid's first recitation has been dated to around 25 BC, when he was eighteen. He was part of the circle centered on the esteemed patron Marcus Valerius Messalla Corvinus, and likewise seems to have been a friend of poets in the circle of Maecenas. In Tristia 4.10.41–54, Ovid mentions friendships with Macer, Propertius, Horace, Ponticus and Bassus. (He only barely met Virgil and Tibullus, a fellow member of Messalla's circle, whose elegies he admired greatly).

He married three times and had divorced twice by the time he was thirty. He had one daughter and grandchildren through her. His last wife was connected in some way to the influential gens Fabia and helped him during his exile in Tomis (now Constanța in Romania).

Literary success
Ovid spent the first 25 years of his literary career primarily writing poetry in elegiac meter with erotic themes. The chronology of these early works is not secure, but scholars have established tentative dates. His earliest extant work is thought to be the Heroides, letters of mythological heroines to their absent lovers, which may have been published in 19 BC, although the date is uncertain as it depends on a notice in Am. 2.18.19–26 that seems to describe the collection as an early published work.

The authenticity of some of these poems has been challenged, but this first edition probably contained the first 14 poems of the collection. The first five-book collection of the Amores, a series of erotic poems addressed to a lover, Corinna, is thought to have been published in 16–15 BC; the surviving version, redacted to three books according to an epigram prefixed to the first book, is thought to have been published c. 8–3 BC. Between the publications of the two editions of the Amores can be dated the premiere of his tragedy Medea, which was admired in antiquity but is no longer extant.

Ovid's next poem, the Medicamina Faciei (a fragmentary work on women's beauty treatments), preceded the Ars Amatoria (the Art of Love), a parody of didactic poetry and a three-book manual about seduction and intrigue, which has been dated to AD 2 (Books 1–2 would go back to 1 BC ). Ovid may identify this work in his exile poetry as the carmen, or song, which was one cause of his banishment. The Ars Amatoria was followed by the Remedia Amoris in the same year. This corpus of elegiac, erotic poetry earned Ovid a place among the chief Roman elegists Gallus, Tibullus, and Propertius, of whom he saw himself as the fourth member.

By AD 8, Ovid had completed Metamorphoses, a hexameter epic poem in 15 books, which comprehensively catalogs the metamorphoses in Greek and Roman mythology, from the emergence of the cosmos to the apotheosis of Julius Caesar. The stories follow each other in the telling of human beings transformed to new bodies: trees, rocks, animals, flowers, constellations, etc. Simultaneously, he worked on the Fasti, a six-book poem in elegiac couplets on the theme of the calendar of Roman festivals and astronomy. The composition of this poem was interrupted by Ovid's exile, and it is thought that Ovid abandoned work on the piece in Tomis. It is probably in this period that the double letters (16–21) in the Heroides were composed, although there is some contention over their authorship.

Exile to Tomis
In AD 8, Ovid was banished to Tomis, on the Black Sea, by the exclusive intervention of the Emperor Augustus without any participation of the Senate or of any Roman judge. This event shaped all his following poetry. Ovid wrote that the reason for his exile was carmen et error – "a poem and a mistake", claiming that his crime was worse than murder, more harmful than poetry.

The Emperor's grandchildren, Julia the Younger and Agrippa Postumus (the latter adopted by him), were also banished around the same time. Julia's husband, Lucius Aemilius Paullus, was put to death for a conspiracy against Augustus, a conspiracy of which Ovid potentially knew.

The Julian marriage laws of 18 BC, which promoted monogamous marriage to increase the population's birth rate, were fresh in the Roman mind. Ovid's writing in the Ars Amatoria concerned the serious crime of adultery. He may have been banished for these works, which appeared subversive to the emperor's moral legislation. However, in view of the long time that elapsed between the publication of this work (1 BC) and the exile (AD 8), some authors suggest that Augustus used the poem as a mere justification for something more personal.

In exile, Ovid wrote two poetry collections, Tristia and Epistulae ex Ponto, which illustrated his sadness and desolation. Being far from Rome, he had no access to libraries, and thus might have been forced to abandon his Fasti, a poem about the Roman calendar, of which only the first six books exist – January through June. He learned Sarmatian and Getic.

The five books of the elegiac Tristia, a series of poems expressing the poet's despair in exile and advocating his return to Rome, are dated to AD 9–12. The Ibis, an elegiac curse poem attacking an unnamed adversary, may also be dated to this period. The Epistulae ex Ponto, a series of letters to friends in Rome asking them to effect his return, are thought to be his last compositions, with the first three books published in AD 13 and the fourth book between AD 14 and 16. The exile poetry is particularly emotive and personal. In the Epistulae he claims friendship with the natives of Tomis (in the Tristia they are frightening barbarians) and to have written a poem in their language (Ex Ponto, 4.13.19–20).

Yet he pined for Rome – and for his third wife, addressing many poems to her. Some are also to the Emperor Augustus, yet others are to himself, to friends in Rome, and sometimes to the poems themselves, expressing loneliness and hope of recall from banishment or exile.

The obscure causes of Ovid's exile have given rise to much speculation by scholars. The medieval texts that mention the exile offer no credible explanations: their statements seem incorrect interpretations drawn from the works of Ovid. Ovid himself wrote many references to his offense, giving obscure or contradictory clues.

In 1923, scholar J. J. Hartman proposed a theory that is little considered among scholars of Latin civilization today: that Ovid was never exiled from Rome and that all of his exile works are the result of his fertile imagination. This theory was supported and rejected in the 1930s, especially by Dutch authors.

In 1985, a research paper by Fitton Brown advanced new arguments in support of Hartman's theory. Brown's article was followed by a series of supports and refutations in the short space of five years. Among the supporting reasons Brown presents are: Ovid's exile is only mentioned by his own work, except in "dubious" passages by Pliny the Elder and Statius, but no other author until the 4th century; that the author of Heroides was able to separate the poetic "I" of his own and real life; and that information on the geography of Tomis was already known by Virgil, by Herodotus and by Ovid himself in his Metamorphoses.

Most scholars, however, oppose these hypotheses. One of the main arguments of these scholars is that Ovid would not let his Fasti remain unfinished, mainly because this poem meant his consecration as an imperial poet.

Death
Ovid died at Tomis in AD 17 or 18. It is thought that the Fasti, which he spent time revising, were published posthumously.

Heroides ("The Heroines")

The Heroides ("Heroines") or Epistulae Heroidum are a collection of twenty-one poems in elegiac couplets. The Heroides take the form of letters addressed by famous mythological characters to their partners expressing their emotions at being separated from them, pleas for their return, and allusions to their future actions within their own mythology. The authenticity of the collection, partially or as a whole, has been questioned, although most scholars would consider the letters mentioned specifically in Ovid's description of the work at Am. 2.18.19–26 as safe from objection. The collection comprises a new type of generic composition without parallel in earlier literature.

The first fourteen letters are thought to comprise the first published collection and are written by the heroines Penelope, Phyllis, Briseis, Phaedra, Oenone, Hypsipyle, Dido, Hermione, Deianeira, Ariadne, Canace, Medea, Laodamia, and Hypermnestra to their absent male lovers. Letter 15, from the historical Sappho to Phaon, seems spurious (although referred to in Am. 2.18) because of its length, its lack of integration in the mythological theme, and its absence from Medieval manuscripts. The final letters (16–21) are paired compositions comprising a letter to a lover and a reply. Paris and Helen, Hero and Leander, and Acontius and Cydippe are the addressees of the paired letters. These are considered a later addition to the corpus because they are never mentioned by Ovid and may or may not be spurious.

The Heroides markedly reveal the influence of rhetorical declamation and may derive from Ovid's interest in rhetorical suasoriae, persuasive speeches, and ethopoeia, the practice of speaking in another character. They also play with generic conventions; most of the letters seem to refer to works in which these characters were significant, such as the Aeneid in the case of Dido and Catullus 64 for Ariadne, and transfer characters from the genres of epic and tragedy to the elegiac genre of the Heroides. The letters have been admired for their deep psychological portrayals of mythical characters, their rhetoric, and their unique attitude to the classical tradition of mythology. They also contribute significantly to conversations on how gender and identity were constructed in Augustan Rome.

A popular quote from the Heroides anticipates Machiavelli's "the end justifies the means". Ovid had written "Exitus acta probat" – the result justifies the means.

Amores ("The Loves")
The Amores is a collection in three books of love poetry in elegiac meter, following the conventions of the elegiac genre developed by Tibullus and Propertius. Elegy originates with Propertius and Tibullus, but Ovid is an innovator in the genre. Ovid changes the leader of his elegies from the poet, to Amor (Love or Cupid). This switch in focus from the triumphs of the poet, to the triumphs of love over people is the first of its kind for this genre of poetry. This Ovidian innovation can be summarized as the use of love as a metaphor for poetry. The books describe the many aspects of love and focus on the poet's relationship with a mistress called Corinna. Within the various poems, several describe events in the relationship, thus presenting the reader with some vignettes and a loose narrative.

Book 1 contains 15 poems. The first tells of Ovid's intention to write epic poetry, which is thwarted when Cupid steals a metrical foot from him, changing his work into love elegy. Poem 4 is didactic and describes principles that Ovid would develop in the Ars Amatoria. The fifth poem, describing a noon tryst, introduces Corinna by name. Poems 8 and 9 deal with Corinna selling her love for gifts, while 11 and 12 describe the poet's failed attempt to arrange a meeting. Poem 14 discusses Corinna's disastrous experiment in dyeing her hair and 15 stresses the immortality of Ovid and love poets.

The second book has 19 pieces; the opening poem tells of Ovid's abandonment of a Gigantomachy in favor of elegy. Poems 2 and 3 are entreaties to a guardian to let the poet see Corinna, poem 6 is a lament for Corinna's dead parrot; poems 7 and 8 deal with Ovid's affair with Corinna's servant and her discovery of it, and 11 and 12 try to prevent Corinna from going on vacation. Poem 13 is a prayer to Isis for Corinna's illness, 14 a poem against abortion, and 19 a warning to unwary husbands.

Book 3 has 15 poems. The opening piece depicts personified Tragedy and Elegy fighting over Ovid. Poem 2 describes a visit to the races, 3 and 8 focus on Corinna's interest in other men, 10 is a complaint to Ceres because of her festival that requires abstinence, 13 is a poem on a festival of Juno, and 9 a lament for Tibullus. In poem 11 Ovid decides not to love Corinna any longer and regrets the poems he has written about her. The final poem is Ovid's farewell to the erotic muse. Critics have seen the poems as highly self-conscious and extremely playful specimens of the elegiac genre.

Medicamina Faciei Femineae ("Women's Facial Cosmetics")
About a hundred elegiac lines survive from this poem on beauty treatments for women's faces, which seems to parody serious didactic poetry. The poem says that women should concern themselves first with manners and then prescribes several compounds for facial treatments before breaking off. The style is not unlike the shorter Hellenistic didactic works of Nicander and Aratus.

Ars Amatoria ("The Art of Love")
Si quis in hoc artem populo non novit amandi, hoc legat et lecto carmine doctus amet.

The Ars Amatoria is a didactic elegiac poem in three books that sets out to teach the arts of seduction and love. The first book addresses men and teaches them how to seduce women, the second, also to men, teaches how to keep a lover. The third addresses women and teaches seduction techniques. The first book opens with an invocation to Venus, in which Ovid establishes himself as a praeceptor amoris (1.17) – a teacher of love. Ovid describes the places one can go to find a lover, like the theater, a triumph, which he thoroughly describes, or arena – and ways to get the girl to take notice, including seducing her covertly at a banquet. Choosing the right time is significant, as is getting into her associates' confidence.

Ovid emphasizes care of the body for the lover. Mythological digressions include a piece on the Rape of the Sabine women, Pasiphaë, and Ariadne. Book 2 invokes Apollo and begins with a telling of the story of Icarus. Ovid advises men to avoid giving too many gifts, keep up their appearance, hide affairs, compliment their lovers, and ingratiate themselves with slaves to stay on their lover's good side. The care of Venus for procreation is described as is Apollo's aid in keeping a lover; Ovid then digresses on the story of Vulcan's trap for Venus and Mars. The book ends with Ovid asking his "students" to spread his fame. Book 3 opens with a vindication of women's abilities and Ovid's resolution to arm women against his teaching in the first two books. Ovid gives women detailed instructions on appearance telling them to avoid too many adornments. He advises women to read elegiac poetry, learn to play games, sleep with people of different ages, flirt, and dissemble. Throughout the book, Ovid playfully interjects, criticizing himself for undoing all his didactic work to men and mythologically digresses on the story of Procris and Cephalus. The book ends with his wish that women will follow his advice and spread his fame saying Naso magister erat, "Ovid was our teacher". (Ovid was known as "Naso" to his contemporaries. )

Remedia Amoris ("The Cure for Love")
This elegiac poem proposes a cure for the love Ovid teaches in the Ars Amatoria, and is primarily addressed to men. The poem criticizes suicide as a means for escaping love and, invoking Apollo, goes on to tell lovers not to procrastinate and be lazy in dealing with love. Lovers are taught to avoid their partners, not perform magic, see their lover unprepared, take other lovers, and never be jealous. Old letters should be burned and the lover's family avoided. The poem throughout presents Ovid as a doctor and utilizes medical imagery. Some have interpreted this poem as the close of Ovid's didactic cycle of love poetry and the end of his erotic elegiac project.

Metamorphoses ("Transformations")

The Metamorphoses, Ovid's most ambitious and well-known work, consists of a 15-book catalogue written in dactylic hexameter about transformations in Greek and Roman mythology set within a loose mytho-historical framework. The word "metamorphoses" is of Greek origin and means "transformations". Appropriately, the characters in this work undergo many different transformations. Within an extent of nearly 12,000 verses, almost 250 different myths are mentioned. Each myth is set outdoors where the mortals are often vulnerable to external influences. The poem stands in the tradition of mythological and etiological catalogue poetry such as Hesiod's Catalogue of Women, Callimachus' Aetia, Nicander's Heteroeumena, and Parthenius' Metamorphoses.

The first book describes the formation of the world, the ages of man, the flood, the story of Daphne's rape by Apollo and Io's by Jupiter. The second book opens with Phaethon and continues describing the love of Jupiter with Callisto and Europa. The third book focuses on the mythology of Thebes with the stories of Cadmus, Actaeon, and Pentheus. The fourth book focuses on three pairs of lovers: Pyramus and Thisbe, Salmacis and Hermaphroditus, and Perseus and Andromeda. The fifth book focuses on the song of the Muses, which describes the rape of Proserpina. The sixth book is a collection of stories about the rivalry between gods and mortals, beginning with Arachne and ending with Philomela. The seventh book focuses on Medea, as well as Cephalus and Procris. The eighth book focuses on Daedalus' flight, the Calydonian boar hunt, and the contrast between pious Baucis and Philemon and the wicked Erysichthon. The ninth book focuses on Heracles and the incestuous Byblis. The tenth book focuses on stories of doomed love, such as Orpheus, who sings about Hyacinthus, as well as Pygmalion, Myrrha, and Adonis. The eleventh book compares the marriage of Peleus and Thetis with the love of Ceyx and Alcyone. The twelfth book moves from myth to history describing the exploits of Achilles, the battle of the centaurs, and Iphigeneia. The thirteenth book discusses the contest over Achilles' arms, and Polyphemus. The fourteenth moves to Italy, describing the journey of Aeneas, Pomona and Vertumnus, and Romulus and Hersilia. The final book opens with a philosophical lecture by Pythagoras and the deification of Caesar. The end of the poem praises Augustus and expresses Ovid's belief that his poem has earned him immortality.

In analyzing the Metamorphoses, scholars have focused on Ovid's organization of his vast body of material. The ways that stories are linked by geography, themes, or contrasts creates interesting effects and constantly forces the reader to evaluate the connections. Ovid also varies his tone and material from different literary genres; G. B. Conte has called the poem "a sort of gallery of these various literary genres". In this spirit, Ovid engages creatively with his predecessors, alluding to the full spectrum of classical poetry. Ovid's use of Alexandrian epic, or elegiac couplets, shows his fusion of erotic and psychological style with traditional forms of epic.

A concept drawn from the Metamorphoses is the idea of the white lie or pious fraud: "pia mendacia fraude".

Fasti ("The Festivals")
Six books in elegiacs survive of this second ambitious poem that Ovid was working on when he was exiled. The six books cover the first semester of the year, with each book dedicated to a different month of the Roman calendar (January to June). The project seems unprecedented in Roman literature. It seems that Ovid planned to cover the whole year, but was unable to finish because of his exile, although he did revise sections of the work at Tomis, and he claims at Trist. 2.549–52 that his work was interrupted after six books. Like the Metamorphoses, the Fasti was to be a long poem and emulated etiological poetry by writers like Callimachus and, more recently, Propertius and his fourth book. The poem goes through the Roman calendar, explaining the origins and customs of important Roman festivals, digressing on mythical stories, and giving astronomical and agricultural information appropriate to the season. The poem was probably dedicated to Augustus initially, but perhaps the death of the emperor prompted Ovid to change the dedication to honor Germanicus. Ovid uses direct inquiry of gods and scholarly research to talk about the calendar and regularly calls himself a vates, a seer. He also seems to emphasize unsavory, popular traditions of the festivals, imbuing the poem with a popular, plebeian flavor, which some have interpreted as subversive to the Augustan moral legislation. While this poem has always been invaluable to students of Roman religion and culture for the wealth of antiquarian material it preserves, it recently has been seen as one of Ovid's finest literary works and a unique contribution to Roman elegiac poetry.

Ibis ("The Ibis")
The Ibis is an elegiac poem in 644 lines, in which Ovid uses a dazzling array of mythic stories to curse and attack an enemy who is harming him in exile. At the beginning of the poem, Ovid claims that his poetry up to that point had been harmless, but now he is going to use his abilities to hurt his enemy. He cites Callimachus' Ibis as his inspiration and calls all the gods to make his curse effective. Ovid uses mythical exempla to condemn his enemy in the afterlife, cites evil prodigies that attended his birth, and then in the next 300 lines wishes that the torments of mythological characters befall his enemy. The poem ends with a prayer that the gods make his curse effective.

Tristia ("Sorrows")
The Tristia consist of five books of elegiac poetry composed by Ovid in exile in Tomis.

Book 1 contains 11 poems; the first piece is an address by Ovid to his book about how it should act when it arrives in Rome. Poem 3 describes his final night in Rome, poems 2 and 10 Ovid's voyage to Tomis, 8 the betrayal of a friend, and 5 and 6 the loyalty of his friends and wife. In the final poem Ovid apologizes for the quality and tone of his book, a sentiment echoed throughout the collection.

Book 2 consists of one long poem in which Ovid defends himself and his poetry, uses precedents to justify his work, and begs the emperor for forgiveness.

Book 3 in 14 poems focuses on Ovid's life in Tomis. The opening poem describes his book's arrival in Rome to find Ovid's works banned. Poems 10, 12, and 13 focus on the seasons spent in Tomis, 9 on the origins of the place, and 2, 3, and 11 his emotional distress and longing for home. The final poem is again an apology for his work.

The fourth book has ten poems addressed mostly to friends. Poem 1 expresses his love of poetry and the solace it brings; while 2 describes a triumph of Tiberius. Poems 3–5 are to friends, 7 a request for correspondence, and 10 an autobiography.

The final book of the Tristia with 14 poems focuses on his wife and friends. Poems 4, 5, 11, and 14 are addressed to his wife, 2 and 3 are prayers to Augustus and Bacchus, 4 and 6 are to friends, 8 to an enemy. Poem 13 asks for letters, while 1 and 12 are apologies to his readers for the quality of his poetry.

Epistulae ex Ponto ("Letters from the Black Sea")
The Epistulae ex Ponto is a collection in four books of further poetry from exile. The Epistulae are each addressed to a different friend and focus more desperately than the Tristia on securing his recall from exile. The poems mainly deal with requests for friends to speak on his behalf to members of the imperial family, discussions of writing with friends, and descriptions of life in exile. The first book has ten pieces in which Ovid describes the state of his health (10), his hopes, memories, and yearning for Rome (3, 6, 8), and his needs in exile (3). Book 2 contains impassioned requests to Germanicus (1 and 5) and various friends to speak on his behalf at Rome while he describes his despair and life in exile. Book 3 has nine poems in which Ovid addresses his wife (1) and various friends. It includes a telling of the story of Iphigenia in Tauris (2), a poem against criticism (9), and a dream of Cupid (3). Book 4, the final work of Ovid, in 16 poems talks to friends and describes his life as an exile further. Poems 10 and 13 describe Winter and Spring at Tomis, poem 14 is halfhearted praise for Tomis, 7 describes its geography and climate, and 4 and 9 are congratulations on friends for their consulships and requests for help. Poem 12 is addressed to a Tuticanus, whose name, Ovid complains, does not fit into meter. The final poem is addressed to an enemy whom Ovid implores to leave him alone. The last elegiac couplet is translated: "Where's the joy in stabbing your steel into my dead flesh?/ There's no place left where I can be dealt fresh wounds."

Lost works
One loss, which Ovid himself described, is the first five-book edition of the Amores, from which nothing has come down to us. The greatest loss is Ovid's only tragedy, Medea, from which only a few lines are preserved. Quintilian admired the work a great deal and considered it a prime example of Ovid's poetic talent. Lactantius quotes from a lost translation by Ovid of Aratus' Phaenomena, although the poem's ascription to Ovid is insecure because it is never mentioned in Ovid's other works. A line from a work entitled Epigrammata is cited by Priscian. Even though it is unlikely, if the last six books of the Fasti ever existed, they constitute a great loss. Ovid also mentions some occasional poetry (Epithalamium, dirge, even a rendering in Getic ) which does not survive. Also lost is the final portion of the Medicamina.

Consolatio ad Liviam ("Consolation to Livia")
The Consolatio is a long elegiac poem of consolation to Augustus' wife Livia on the death of her son Nero Claudius Drusus. The poem opens by advising Livia not to try to hide her sad emotions and contrasts Drusus' military virtue with his death. Drusus' funeral and the tributes of the imperial family are described as are his final moments and Livia's lament over the body, which is compared to birds. The laments of the city of Rome as it greets his funeral procession and the gods are mentioned, and Mars from his temple dissuades the Tiber river from quenching the pyre out of grief.

Grief is expressed for his lost military honors, his wife, and his mother. The poet asks Livia to look for consolation in Tiberius. The poem ends with an address by Drusus to Livia assuring him of his fate in Elysium. Although this poem was connected to the Elegiae in Maecenatem, it is now thought that they are unconnected. The date of the piece is unknown, but a date in the reign of Tiberius has been suggested because of that emperor's prominence in the poem.

Halieutica ("On Fishing")
The Halieutica is a fragmentary didactic poem in 134 poorly preserved hexameter lines and is considered spurious. The poem begins by describing how every animal possesses the ability to protect itself and how fish use ars to help themselves. The ability of dogs and land creatures to protect themselves is described. The poem goes on to list the best places for fishing, and which types of fish to catch. Although Pliny the Elder mentions a Halieutica by Ovid, which was composed at Tomis near the end of Ovid's life, modern scholars believe Pliny was mistaken in his attribution and that the poem is not genuine.

Nux ("The Walnut Tree")
This short poem in 91 elegiac couplets is related to Aesop's fable of "The Walnut Tree" that was the subject of human ingratitude. In a monologue asking boys not pelt it with stones to get its fruit, the tree contrasts the formerly fruitful golden age with the present barren time, in which its fruit is violently ripped off and its branches broken. In the course of this, the tree compares itself to several mythological characters, praises the peace that the emperor provides and prays to be destroyed rather than suffer. The poem is considered spurious because it incorporates allusions to Ovid's works in an uncharacteristic way, although the piece is thought to be contemporary with Ovid.

Somnium ("The Dream")
This poem, traditionally placed at Amores 3.5, is considered spurious. The poet describes a dream to an interpreter, saying that he sees while escaping from the heat of noon a white heifer near a bull; when the heifer is pecked by a crow, it leaves the bull for a meadow with other bulls. The interpreter interprets the dream as a love allegory; the bull represents the poet, the heifer a girl, and the crow an old woman. The old woman spurs the girl to leave her lover and find someone else. The poem is known to have circulated independently and its lack of engagement with Tibullan or Propertian elegy argue in favor of its spuriousness; however, the poem does seem to be datable to the early empire.

Style
Ovid is traditionally considered the final significant love elegist in the evolution of the genre and one of the most versatile in his handling of the genre's conventions. Like the other canonical elegiac poets Ovid takes on a persona in his works that emphasizes subjectivity and personal emotion over traditional militaristic and public goals, a convention that some scholars link to the relative stability provided by the Augustan settlement. However, although Catullus, Tibullus and Propertius may have been inspired in part by personal experience, the validity of "biographical" readings of these poets' works is a serious point of scholarly contention.

Ovid has been seen as taking on a persona in his poetry that is far more emotionally detached from his mistress and less involved in crafting a unique emotional realism within the text than the other elegists. This attitude, coupled with the lack of testimony that identifies Ovid's Corinna with a real person has led scholars to conclude that Corinna was never a real person – and that Ovid's relationship with her is an invention for his elegiac project. Some scholars have even interpreted Corinna as a metapoetic symbol for the elegiac genre itself.

Ovid has been considered a highly inventive love elegist who plays with traditional elegiac conventions and elaborates the themes of the genre; Quintilian even calls him a "sportive" elegist. In some poems, he uses traditional conventions in new ways, such as the paraklausithyron of Am. 1.6, while other poems seem to have no elegiac precedents and appear to be Ovid's own generic innovations, such as the poem on Corinna's ruined hair (Am. 1.14). Ovid has been traditionally seen as far more sexually explicit in his poetry than the other elegists.

His erotic elegy covers a wide spectrum of themes and viewpoints; the Amores focus on Ovid's relationship with Corinna, the love of mythical characters is the subject of the Heroides, and the Ars Amatoria and the other didactic love poems provide a handbook for relationships and seduction from a (mock-)"scientific" viewpoint. In his treatment of elegy, scholars have traced the influence of rhetorical education in his enumeration, in his effects of surprise, and in his transitional devices.

Some commentators have also noted the influence of Ovid's interest in love elegy in his other works, such as the Fasti, and have distinguished his "elegiac" style from his "epic" style. Richard Heinze in his famous Ovids elegische Erzählung (1919) delineated the distinction between Ovid's styles by comparing the Fasti and Metamorphoses versions of the same legends, such as the treatment of the Ceres–Proserpina story in both poems. Heinze demonstrated that, "whereas in the elegiac poems a sentimental and tender tone prevails, the hexameter narrative is characterized by an emphasis on solemnity and awe..." His general line of argument has been accepted by Brooks Otis, who wrote:

"The gods are 'serious' in epic as they are not in elegy; the speeches in epic are long and infrequent compared to the short, truncated and frequent speeches of elegy; the epic writer conceals himself while the elegiac fills his narrative with familiar remarks to the reader or his characters; above all perhaps, epic narrative is continuous and symmetrical... whereas elegiac narrative displays a marked asymmetry ..."

Otis wrote that in the Ovidian poems of love, he "was burlesquing an old theme rather than inventing a new one". Otis states that the Heroides are more serious and, though some of them are "quite different from anything Ovid had done before [...] he is here also treading a very well-worn path" to relate that the motif of females abandoned by or separated from their men was a "stock motif of Hellenistic and neoteric poetry (the classic example for us is, of course, Catullus 66)".

Otis also states that Phaedra and Medea, Dido and Hermione (also present in the poem) "are clever re-touchings of Euripides and Vergil". Some scholars, such as Kenney and Clausen, have compared Ovid with Virgil. According to them, Virgil was ambiguous and ambivalent while Ovid was defined and, while Ovid wrote only what he could express, Virgil wrote for the use of language.

Criticism
Ovid's works have been interpreted in various ways over the centuries with attitudes that depended on the social, religious and literary contexts of different times. It is known that since his own lifetime, he was already famous and criticized. In the Remedia Amoris, Ovid reports criticism from people who considered his books insolent. Ovid responded to this criticism with the following:  Gluttonous Envy, burst: my name's well known already it will be more so, if only my feet travel the road they've started. But you're in too much of a hurry: if I live you'll be more than sorry: many poems, in fact, are forming in my mind.

After such criticism subsided, Ovid became one of the best known and most loved Roman poets during the Middle Ages and the Renaissance.

Writers in the Middle Ages used his work as a way to read and write about sex and violence without orthodox "scrutiny routinely given to commentaries on the Bible". In the Middle Ages the voluminous Ovide moralisé, a French work that moralizes 15 books of the Metamorphoses was composed. This work then influenced Chaucer. Ovid's poetry provided inspiration for the Renaissance idea of humanism, and more specifically, for many Renaissance painters and writers.

Likewise, Arthur Golding moralized his own translation of the full 15 books, and published it in 1567. This version was the same version used as a supplement to the original Latin in the Tudor-era grammar schools that influenced such major Renaissance authors as Christopher Marlowe and William Shakespeare. Many non-English authors were heavily influenced by Ovid's works as well. Montaigne, for example, alluded to Ovid several times in his Essais, specifically in his comments on Education of Children when he says:

"The first taste I had for books came to me from my pleasure in the fables of the Metamorphoses of Ovid. For at about seven or eight years of age I would steal away from any other pleasure to read them, inasmuch as this language was my mother tongue, and it was the easiest book I knew and the best suited by its content to my tender age." Miguel de Cervantes also used the Metamorphoses as a platform of inspiration for his prodigious novel Don Quixote. Ovid is both praised and criticized by Cervantes in his Don Quixote, where he warns against satires that can exile poets, as happened to Ovid.

In the 16th century, some Jesuit schools of Portugal cut several passages from Ovid's Metamorphoses. While the Jesuits saw his poems as elegant compositions worthy of being presented to students for educational purposes, they also felt his works as a whole might corrupt students. The Jesuits took much of their knowledge of Ovid to the Portuguese colonies. According to (1949), the ratio studiorum was in effect in Colonial Brazil during the early 17th century, and in this period Brazilian students read works like the Epistulae ex Ponto to learn Latin grammar.

In the 16th century, Ovid's works were criticized in England. The Archbishop of Canterbury and the Bishop of London ordered that a contemporary translation of Ovid's love poems be publicly burned in 1599. The Puritans of the following century viewed Ovid as a pagan, thus as an immoral influence. John Dryden composed a famous translation of the Metamorphoses into stopped rhyming couplets during the 17th century, when Ovid was "refashioned [...] in its own image, one kind of Augustanism making over another".

The Romantic movement of the 19th century, in contrast, considered Ovid and his poems "stuffy, dull, over-formalized and lacking in genuine passion". Romantics might have preferred his poetry of exile. The picture Ovid among the Scythians, painted by Delacroix, portrays the last years of the poet in exile in Scythia, and was seen by Baudelaire, Gautier and Edgar Degas. Baudelaire took the opportunity to write a long essay about the life of an exiled poet like Ovid. This shows that the exile of Ovid had some influence in 19th century Romanticism since it makes connections with its key concepts such as wildness and the misunderstood genius.

The exile poems were once viewed unfavorably in Ovid's oeuvre. They have enjoyed a resurgence of scholarly interest in recent years, though critical opinion remains divided on several qualities of the poems, such as their intended audience and whether Ovid was sincere in the "recantation of all that he stood for before".

The 20th Century British poet laureate, the late Ted Hughes, follows in the tradition of portraying a wild, immoral and violent Ovid in his free verse modern translation of the Metamorphoses and Ovid's portrayal of the fickle and immoral nature of the Gods.

Literary and artistic

 * (c. 800–810) Moduin, a poet in the court circle of Charlemagne, who adopts the pen name Naso.
 * (12th century) The troubadours and the medieval courtoise literature. In particular, the passage describing the Holy Grail in the Conte du Graal by Chrétien de Troyes contains elements from the Metamorphoses.
 * (13th century) The Roman de la Rose, Dante Alighieri
 * (14th century) Petrarch, Geoffrey Chaucer, Juan Ruiz
 * (15th century) Sandro Botticelli
 * (16th century–17th century) Luís de Camões, Christopher Marlowe, William Shakespeare, John Marston, Thomas Edwards
 * (17th century) John Milton, Gian Lorenzo Bernini, Miguel de Cervantes's Don Quixote, 1605 and 1615, Luis de Góngora's La Fábula de Polifemo y Galatea, 1613, Landscape with Pyramus and Thisbe by Nicolas Poussin, 1651, Stormy Landscape with Philemon and Baucis by Peter Paul Rubens, c. 1620, "Divine Narcissus" by Sor Juana Inés de la Cruz c. 1689.
 * (1820s) During his Odessa exile, Alexander Pushkin compared himself to Ovid; memorably versified in the epistle To Ovid (1821). The exiled Ovid also features in his long poem Gypsies, set in Moldavia (1824), and in Canto VIII of Eugene Onegin (1825–1832).
 * (1916) James Joyce's A Portrait of the Artist as a Young Man has a quotation from Book 8 of Metamorphoses and introduces Stephen Dedalus. The Ovidian reference to "Daedalus" was in Stephen Hero, but then metamorphosed to "Dedalus" in A Portrait of the Artist as a Young Man and in Ulysses.
 * (1920s) The title of the second poetry collection by Osip Mandelstam, Tristia (Berlin, 1922), refers to Ovid's book. Mandelstam's collection is about his hungry, violent years immediately after the October Revolution.
 * (1951) Six Metamorphoses after Ovid by Benjamin Britten, for solo oboe, evokes images of Ovid's characters from Metamorphoses.
 * (1960) God Was Born in Exile, the novel by the Romanian writer Vintila Horia about Ovid's stay in exile (the novel received the Prix Goncourt in 1960).
 * (1961) The eight-line poem "Ovid in the Third Reich" by Geoffrey Hill transposes Ovid to National Socialist Germany.
 * (1960s–2010s) Bob Dylan has made repeated use of Ovid's wording, imagery, and themes.
 * (2006) His album Modern Times contains songs with borrowed lines from Ovid's Poems of Exile, from Peter Green's translation. The songs are "Workingman's Blues #2", "Ain't Talkin'", "The Levee's Gonna Break", and "Spirit on the Water".
 * (1971) Genesis song The fountain of Salmacis from their album Nursery Cryme faithfully reports the myth of Hermaphroditus and Salmacis as narrated in Ovid's Metamorphoses.
 * (1978) Australian author David Malouf's novel An Imaginary Life is about Ovid's exile in Tomis.
 * (1988) The novel The Last World by Christoph Ransmayr uses anachronisms to weave together parts of Ovid's biography and stories from the Metamorphoses in an uncertain time setting.
 * (2000) The Art of Love by Robin Brooks, a comedy, emphasizing Ovid's role as lover. Broadcast 23 May on BBC Radio 4, with Bill Nighy and Anne-Marie Duff (not to be confused with the 2004 radio play by the same title on Radio 3).
 * (2004) The Art of Love by Andrew Rissik, a drama, part of a trilogy, which speculates on the crime that sent Ovid into exile. Broadcast 11 April on BBC Radio 4, with Stephen Dillane and Juliet Aubrey (not to be confused with the 2000 radio play by the same title on Radio 4).
 * (2007) Russian author Alexander Zorich's novel Roman Star is about the last years of Ovid's life.
 * (2007) the play "The Land of Oblivion " by Russian-American dramatist Mikhail Berman-Tsikinovsky was published in Russian by Vagrius Plus (Moscow).The play was based on author's new hypothesis unrevealing the mystery of Ovid's exile to Tomi by Augustus.
 * (2008) "The Love Song of Ovid", a two-hour radio documentary by Damiano Pietropaolo, recorded on location in Rome (the recently restored house of Augustus on the Roman forum), Sulmona (Ovid's birthplace) and Constanta (modern day Tomis, in Romania). Broadcast on the Canadian Broadcasting Corporation, CBC Radio One, 18 and 19 December 2008.
 * (2012) The House Of Rumour, a novel by British author Jake Arnott, opens with a passage from Metamorphoses 12.39–63, and the author muses on Ovid's prediction of the internet in that passage.
 * (2013) Mikhail Berman-Tsikinovsky's "To Ovid, 2000 years later, (A Road Tale)" describes the author's visits to the places of Ovid's birth and death.
 * (2015) In The Walking Dead season 5, episode 5 ("Now"), Deanna begins making a long-term plan to make her besieged community sustainable and writes on her blueprint a Latin phrase attributed to Ovid: "Dolor hic tibi proderit olim". The phrase is an excerpt from the longer phrase, "Perfer et obdura, dolor hic tibi proderit olim" (English translation: Be patient and tough; someday this pain will be useful to you").
 * (2017) "...and while there he sighs" for 31-tone organ and mezzosoprano by composer Fabio Costa is based on the Syrinx and Pan scene from Metamorphoses, with performances in Amsterdam (2017, 2019).
 * (2017) Canadian composer Marc Sabat and German poet Uljana Wolf collaborated on a free homophonic translation of the first 88 lines of Ovid's Metamorphoseon to create the cantata Seeds of skies, alibis premiered by the vocal ensemble Ekmeles in New York on 22 February 2018.

Dante twice mentions him in:
 * De vulgari eloquentia, along with Lucan, Virgil and Statius as one of the four regulati poetae (ii, vi, 7)
 * Inferno as ranking alongside Homer, Horace, Lucan and Virgil (Inferno, IV, 88)

Retellings, adaptations, and translations of Ovidian works

 * (1609) The Wisdom of the Ancients, a retelling and interpretation of Ovidian fables by Francis Bacon
 * (1767) Apollo et Hyacinthus, an early opera by Wolfgang Amadeus Mozart
 * (1916) Ovid's Metamorphoses Vols 1–2 translation by Frank Justus Miller
 * (1926) Orphée, a play by Jean Cocteau, retelling of the Orpheus myth from the Metamorphoses
 * (1938) Daphne, an opera by Richard Strauss
 * (1949) Orphée, a film by Jean Cocteau based on his 1926 play, retelling of the Orpheus myth from the Metamorphoses
 * (1978) Ovid's Metamorphoses (Translation in Blank Verse), by Brookes More
 * (1978) Ovid's Metamorphoses in European Culture (Commentary), by Wilmon Brewer
 * (1991) The Last World by Christoph Ransmayr
 * (1997) Polaroid Stories by Naomi Iizuka, a retelling of Metamorphoses, with urchins and drug addicts as the gods.
 * (1994) After Ovid: New Metamorphoses edited by Michael Hofmann and James Lasdun is an anthology of contemporary poetry envisioning Ovid's Metamorphoses
 * (1997) Tales from Ovid by Ted Hughes is a modern poetic translation of twenty four passages from Metamorphoses
 * (2000) Ovid Metamorphosed edited by Phil Terry, a short story collection retelling several of Ovid's fables
 * (2002) An adaptation of Metamorphoses of the same name by Mary Zimmerman was performed at the Circle in the Square Theatre
 * (2006) Patricia Barber's song cycle, Mythologies
 * (2008) Tristes Pontiques, translated from Latin by Marie Darrieussecq
 * (2011) A stage adaptation of Metamorphoses by Peter Bramley, entitled Ovid's Metamorphoses was performed by Pants on Fire, presented by the Carol Tambor Theatrical Foundation at the Flea Theater in New York City and toured the United Kingdom
 * (2012) "The Song of Phaethon", a post-rock/musique concrète song written and performed by Ian Crause (former leader of Disco Inferno) in Greek epic style, based on a Metamorphoses tale (as recounted in Hughes' Tales from Ovid) and drawing parallels between mythology and current affairs
 * (2013) Clare Pollard, Ovid's Heroines (Bloodaxe), new poetic version of Heroides

Editions

 * McKeown, J. (ed), Ovid: Amores. Text, Prolegomena and Commentary in four volumes, Vol. I–III (Liverpool, 1987–1998) (ARCA, 20, 22, 36).
 * Ryan, M. B.; Perkins, C. A. (ed.), Ovid's Amores, Book One: A Commentary (Norman: University of Oklahoma Press, 2011) (Oklahoma Series in Classical Culture, 41).
 * Tarrant, R. J. (ed.), P. Ovidi Nasonis Metamorphoses (Oxford: OUP, 2004) (Oxford Classical Texts).
 * Anderson, W. S., Ovid's Metamorphoses, Books 1–5 (Norman: University of Oklahoma Press, 1996).
 * Anderson, W. S., Ovid's Metamorphoses, Books 6–10 (Norman: University of Oklahoma Press, 1972).
 * Kenney, E. J. (ed.), P. Ovidi Nasonis Amores, Medicamina Faciei Femineae, Ars Amatoria, Remedia Amoris (Oxford: OUP, 19942) (Oxford Classical Texts).
 * Myers, K. Sara Ovid Metamorphoses 14. Cambridge Greek and Latin Classics. (Cambridge University Press, 2009).
 * Ramírez de Verger, A. (ed.), Ovidius, Carmina Amatoria. Amores. Medicamina faciei femineae. Ars amatoria. Remedia amoris. (München & Leipzig: Saur, 20062) (Bibliotheca Teubneriana).
 * Dörrie, H. (ed.), Epistulae Heroidum / P. Ovidius Naso (Berlin & New York: de Gruyter, 1971) (Texte und Kommentare; Bd. 6).
 * Fornaro, P. (ed.), Publio Ovidio Nasone, Heroides (Alessandria: Edizioni del'Orso, 1999)
 * Alton, E.H.; Wormell, D.E.W.; Courtney, E. (eds.), P. Ovidi Nasonis Fastorum libri sex (Stuttgart & Leipzig: Teubner, 19974) (Bibliotheca Teubneriana).
 * Fantham, Elaine. Fasti. Book IV. Cambridge Greek and Latin Classics. (Cambridge University Press, 1998).
 * Wiseman, Anne and Peter Wiseman Ovid: Fasti. (Oxford University Press, 2013).
 * Goold, G.P., et alii (eds.), Ovid, Heroides, Amores; Art of Love, Cosmetics, Remedies for Love, Ibis, Walnut-tree, Sea Fishing, Consolation; Metamorphoses; Fasti; Tristia, Ex Ponto, Vol. I-VI, (Cambridge, Massachusetts/London: HUP, 1977–1989, revised ed.) (Loeb Classical Library)
 * Hall, J.B. (ed.), P. Ovidi Nasonis Tristia (Stuttgart & Leipzig: Teubner 1995) (Bibliotheca Teubneriana).
 * Ingleheart, Jennifer Tristia Book 2. (Oxford University Press, 2010).
 * Richmond, J. A. (ed.), P. Ovidi Nasonis Ex Ponto libri quattuor (Stuttgart & Leipzig: Teubner 1990) (Bibliotheca Teubneriana).

Latin and English translation

 * Perseus/Tufts: P. Ovidius Naso Amores, Ars Amatoria, Heroides (on this site called Epistulae), Metamorphoses, Remedia Amoris. Enhanced brower. Not downloadable.
 * Sacred Texts Archive: Ovid Amores, Ars Amatoria, Medicamina Faciei Femineae, Metamorphoses, Remedia Amoris.
 * The Metamorphoses of Publius Ovidius Naso ; elucidated by an analysis and explanation of the fables, together with English notes, historical, mythological and critical, and illustrated by pictorial embellishments: with a dictionary, giving the meaning of all the words with critical exactness. By Nathan Covington Brooks. Publisher: New York, A. S. Barnes & co.; Cincinnati, H. W. Derby & co., 1857 (a searchable facsimile at the University of Georgia Libraries; DjVu & layered PDF format)

Original Latin only

 * Latin Library: Ovid Amores, Ars Amatoria, Epistulae ex Ponto, Fasti, Heroides, Ibis, Metamorphoses, Remedia Amoris, Tristia.
 * Works by Ovid

English translation only

 * New translations by A. S. Kline Amores, Ars Amatoria, Epistulae ex Ponto, Fasti, Heroides, Ibis, Medicamina Faciei Femineae, Metamorphoses, Remedia Amoris, Tristia with enhanced browsing facility, downloadable in HTML, PDF, or MS Word DOC formats. Site also includes wide selection of works by other authors.
 * Two translations from Ovid's Amores by Jon Corelis.
 * English translations of Ovid's Amores with introductory essay and notes by Jon Corelis
 * Perseus/Tufts: Commentary on the Heroides of Ovid

license: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/

title: Ovid