Analysis of information sources in references of the Wikipedia article "Vaticinium ex eventu" in English language version.
The consensus of modern biblical scholarship is that the book was composed in the second century B.C., that it is a pseudonymous work, and that it is indeed an example of prophecy after the fact.
The book of Daniel becomes foundational for the Jewish or Jewish-Christian millenarian vision of the future that became paradigmatic [...]. [...] One of the great ironies in the history of Western ideas is that Daniel's influence on subsequent Jewish and Christian views of the future had such a remarkable influence, given that everything predicted by Daniel utterly failed! [...] One might expect that a book that had proven itself to be wrong on every count would have long since been discarded as misguided and obsolete, but, in fact, the opposite was the case. Daniel's victory was a literary one. [...] Daniel not only survived but its influence increased. The book of Daniel became the foundational basis of all Jewish and Christian expressions of apocalyptic millenarianism for the next two thousand years. [...] Daniel is the clearest example from this period of the "when prophecy fails" syndrome [...]