I know, if I got a name associated with anything beside an early 17th century astronomer, it's from picking apart the book of Daniel. Much of fundamentalist & apocalyptic thought (sic) arises from explanations of this book's passages and I protest. We could review other points, but let me note the following discrepancy: the end of chapter 1 and the beginning of chapter 9.
Chapter 1 begins with the 3rd year of Jehoiakim's reign with a Nebuchadnezzar raid. That would be about 604 BC or thereabouts in "conventional" chronology. The narration is 3rd person relating how Babylonian King Nebuchadnezzar bid that the sons of nobles of Israel ( Judah) be brought to his court, including one Daniel "who had determinined in his heart not to pollute himself with the delicacies of the king and drinking wine." ..."And Daniel continued on until the first year of Cyrus the king." (Daniel, I:21).
Let me repeat: "Daniel continued on UNTIL the FIRST year of Cyrus the king."
If you look at a Concordance, Cyrus is mentioned again in Daniel in two places:
Chapter 10:1 "In the 3rd year of Cyrus the king of Persia, there was a matter revealed whose name was called Belteshazzar [Daniel]" The narration is in first person.
Then there is also chapter 14, written in Greek and not included in many Bibles, but a feature of the Vulgate & Septuagint:
"When King Astyages ( the Mede) joined his ancestors, Cyrus of Persia succeeded him. Daniel was very close to the king, who requested him more than any of his friends....:" Astyages was the last king of the Medes. See Herodotus for details - though I suspect many of these are questionable as well.
OK. So far, so good, right? Maybe Daniel didn't leave in the first year of the reign of Cyrus. And what is the first year of Cyrus after all - since he was already king of Persia? Cyrus revolted against Astyages in 555 BC and, according to Herodotus, kept Astyages at his court.
But what about chapter 9?
"It was the 3rd year of Darius son of Artaxerxes, a Mede by race who assumed the throne of Chaldea. In the first year of his reign, I Daniel...
Elsewhere this is translated as Ahasuerus, but the problem is the same. Darius ( Daryavoosh roughly in Persian) is a Persian name and is a SUCCESSOR to Cyrus. This contradicts events recorded elsewhere if we are to interpret them as a predecessor to Cyrus. And the first book of Daniel says Daniel left Babylon within a year of the entry of Cyrus. It is in ISAIAH that Cyrus is announced as the victor over Babylon. And his proclamation of return is the beginning of Ezra as well as a cuneiform artifact. The key to who Darius the Mede is in near contemporary accounts of the Battle of Marathon by the Greek historian Thucydides who declares the Athenians victors over an army of Medes in 490 BC. Same with Herodotus calling Xerxes the king of the Medes as well.
In chapters 7 and 8, Daniel also attests to visions in the respective first and third years of Belshazzar's kingship. The trouble is, Belshazzar is the son of King Nabonidus who never abdicated. Nabonidus is never mentioned in Daniel - and in 8 the text reverts back to Hebrew from Aramaic. Go figure, considering that the testimonies are supposedly two years apart.
I'll just let chapters 5 and 6 have a rest - for now, save that Darius the Mede is credited with Persian satrap government structure - attributed as well to Nebuchadnezzar in chapter 3.
The visions as described appear to be much the same as historical events related much less metaphorically in Maccabees or Josephus. But it is much more difficult to construct the houses of cards with an admission that Daniel was written first for an audience of about 165 BC with a persecution as bad (or worse - abominations in the Temple) than the one suffered under the Babylonians. It is also awkward to tote Bibles with Maccabees or Bel the Dragon included. Someone might actually notice a discrepancy or two.