Herodotus knew of the
Cypria and the
Epigoni when he wrote his
History in the mid-5th century BCE. He rejected the Homeric authorship for the former and questioned it for the latter. The Epic Cycle was not "mentioned as a whole" (including the Theban Cycle) until the 2nd century CE, but knowledge of a "Trojan cycle" is apparent from at least the 4th century BCE as
Aristoxenus mentions an alternative opening to the
Iliad.
Aristotle, in his
Poetics, criticizes the
Cypria and
Little Iliad for the piecemeal character of their plots:
The Library attributed to
Apollodorus and the 2nd century CE Latin
Genealogia attributed to
Hyginus also drew on them. Furthermore, there are also the
Tabula iliaca inscriptions that cover the same myths. Most knowledge of the Cyclic epics comes from a broken summary of them which serves as part of the preface to the famous 10th century
Iliad manuscript known as
Venetus A. This preface is damaged, missing the
Cypria, and has to be supplemented by other sources (the
Cypria summary is preserved in several other manuscripts, each containing only the
Cypria and none of the other epics). The summary is, in turn, an excerpt from a longer work,
Chrestomathy, written by a "Proclus." This is known from evidence provided by the later scholar Photius, mentioned above. Photius provides sufficient information about Proclus'
Chrestomathy to demonstrate that the Venetus A excerpt is derived from the same work. Little is known about Proclus. He is certainly not the philosopher
Proclus Diadochus. Some have thought that it might be the same person as the lesser-known grammarian
Eutychius Proclus, who lived in the 2nd century CE, but it is quite possible that he is simply an otherwise unknown figure. In antiquity, the two Homeric epics were considered the greatest works in the Cycle. For
Hellenistic scholars, the
Cyclic poets, the authors to whom the other poems were commonly ascribed, were νεώτεροι (
neōteroi "later poets") and κυκλικός (
kyklikos "cyclic") was synonymous with "formulaic." Then, and in much modern scholarship, there has been an equation between poetry that is later and poetry that is inferior. The tales told in the Cycle are recounted by other ancient sources, notably
Virgil's
Aeneid (book 2), which recounts the sack of Troy from a Trojan perspective, and
Ovid's
Metamorphoses (books 13–14), which describes the Greeks' landing at Troy (from the
Cypria) and the judgment of Achilles' arms (
Little Iliad).
Quintus of Smyrna's
Posthomerica is another source, which narrates the events after Hector's death up until the end of the war. The death of
Agamemnon and the vengeance taken by his son
Orestes (the
Nostoi) are the subjects of later Greek
tragedy, especially
Aeschylus's
Oresteian trilogy. ==Compilation==