It pleased Darius to set over the kingdom a hundred and twenty satraps, who should be over the whole kingdom;
All Commentaries on Daniel 6:1 Go To Daniel 6
George Leo Haydock
AD 1849
Kingdom. Josephus, say Darius had returned into Media, where he made these regulations. But if this did not take place at Babylon, it would be rather at Susa, chap. viii. Josephus counts 300 or 360 governments, though when the monarchy was increased there were only 127, Esther i. (Calmet)
He may therefore speak here of large towns, which had each a magistrate. Such regulations easily vary. (Haydock)
Darius acts as master of the whole empire.