Gradually, the findings of scholarship about ancient literature make their way toward the consciousness of the general public in the West. The findings about one ancient compilation, about which the West is particularly obsessed, make their way more quickly than all others to the public, and to wider circles of the public: those having to do with the Greek New Testament. If someone believes that all 13 of the books of the New Testament traditionally attributed to St Paul were actually written by Paul, it may come as a shock to learn that scholars now believe that Ephesians, First and Second Timothy and Titus were written by someone else, and that the authorship of Colossians and Second Thessalonians is debated.
This is less shocking for those who have a broad knowledge of ancient Greek and Latin literature, because, among the ancient "pagan" authors, such forgeries are quite common. Take the case of Homer -- well, Homer is a special case to begin with, because there is absolutely no agreement among scholars about whether a writer named Homer ever existed, or whether, if this writer did exist, he wrote the Iliad or the Odyssey or both -- however, it is almost universally agreed now that, whoever wrote the Iliad and the Odyssey, the works known as the Homeric Hymns, and attributed to Homer by the time of Thucydides at the latest, were written by someone else.
No one doubts that Plato existed, or that he wrote many philosophical works centering around Socrates -- but he didn't write all of the dialogues he was once thought to have written. In the collection traditionally thought of as the work of Plato, First Alcibiades, Clitophon, Menexenus and the Epistles are now controversial as to whether or not Plato wrote them, while Second Alcibiades, Epinomis, Hipparchus, Minos, Amatores and Theages are all now generally agreed to have been written by someone else. That's a total ten of the thirty-six works traditionally attributed to Plato, and this does not count nine more works attributed to Plato which were already seen in antiquity to have been spurious: Axiochus, Definitions, Demodocus, Epigrams, Eryxias, Halcyon, On Justice, On Virtue and Sisyphus.
Vergil, on the strength of his works the Aeneid, the Georgics and the Eclogues, is considered by many to be the finest poet ever to have written in Latin. For a long time, an additional collection of poems, the Appendix Vergiliana, were thought to have been poems Vergil wrote in his youth. Now almost no-one believes that Vergil wrote them.
Julius Caesar wrote commentaries about his experiences leading Roman troops in the Gallic and Civil wars. Many editions of Caesar's work have also included commentaries on the Alexandrine, African and Iberian wars, originally presented as works by Caesars, now considered not to have been written by him.
Sallust, an historian and contemporary of Caesar's, is known for works on the Catiline and the Jugurthan War. Editions of his work also contain letters which he ostensibly wrote to Caesar, and a speech against Cicero and one by Cicero against him, which are considered to be forgeries.
An enormous amount of prose survives which was written by Cicero, whom many have called the greatest of all Latin authors. Collections of his works have also included Rhetorica ad Herennium and Commentariolum Petitionis, both almost certainly written by someone other than him.
Ovid is one of the most beloved ancient Latin authors, known for several humorous volumes of what today might be called dating advice, as well as for the Metamorphoses, an extraordinary re-telling of many traditional myths, and the Fasti, a book on Roman holidays which is better than you might think a book on Roman holidays could possibly be, and for other works. Additionally, several works not written by him have circulated along with his works: Consolatio ad Liviam, Halieutica, Nux and Somnium.
There are many, many further examples. Many of these works continue to be of great interest to Classical or biblical scholars, for one reason and another, even after they have been shown to be fakes. One is almost tempted to say that no Classical author can be considered truly great before a spurious work has attached itself to his or her oeuvre.
The authors of such spurious works are often referred to by putting the prefix "pseudo-" in front of the name of the author who is being imitated. More and more, separate editions are dedicated to the work of the forgers, rather than including them in the editions of the forged authors as a sort of afterthought.
Perhaps, as these widespread, and often well-respected forgeries become better-known, the shock of the layman at things like pseudo-Pauline epistles will become somewhat less.
