(Part 2)
The traditional Persian order of kingdoms was Assyria, Media, Persia and Greece. (see Herodotus I.95,130 and a Ktesias fragment in Diodorus Siculus 2.1-34). The sequence of Babylon, Media then Persia is also attested to in Jewish writings e.g. Tobit 14:4-7. Two writings from Roman times extend this sequence to five adding Greece then Rome. See Polybius (38.2), Dionysus (1.202.4), Tacitus (Hist 5.8-9) and Appian (Preface 9).
According to Daniel, the mysterious King 'Darius the Mede' rules in between the fall of Babylon and the rule of the Persians. Whether 'Darius the Mede' was a confusion with Darius I Hystaspes, or was a Median governor in Babylon called Gubaru, there is little doubt that the author of Daniel has the Medes second in the succession of powers between Babylon and Persia.
Other Jewish writings tend to confirm 'Darius the Mede' as Astyages, the last King of the Medes. Below there's a chart of the reigns of the Median and Persian kings between 625 BC and 466 BC.
Kings of Media: Kings of Persia:
Cyaxares (625-585BC) (Ahasuerus - Tobit 14:15)
614 Medes take Ashur
612 Medes and Babylonians take Nineveh.
Astyages (585-550BC) (Darius the Mede - Daniel 9:1 & Bel 1:1)
Cyrus II the Great (559-530BC)
Cambyses II (530-522BC)
Bardiya (522BC)
Darius I Hystaspes (522-486BC)
Xerxes I (486-466BC)
The book of Tobit 14:15 talks of the 'destruction of Nineveh, which Nebuchadnezzar and Ahasuerus had captured'. Daniel 9:1 calls Darius 'the son of Ahasuerus, by birth a Mede' and the apocryphal book Bel and the Dragon says: "When King Astyages was laid with his fathers, Cyrus the Persian received his kingdom.'
So according to Jewish tradition and the book of Daniel, Darius the Mede was Astyages, last King of the Medes, the son of Cyaxares who sacked Nineveh. Whether this view of history is correct or not is not important in trying to find the identity of these four kingdoms in Daniels prophecy. What is important is the history that Daniel and other Jewish writers thought was correct.
(cont...)