2 hours
The Medes conquered Nineveh in 632 BC. (with the assistance of the Scythians, Cimmerians and Chaldeans) and then "dive under our radar". Not three generations later in 537 BC, it's these same Medes who've conquered the might city Babylon.
But by this time the Medes themselves have become subject to another people of whom not many had heard till that time: the Persians.
What is their history? Their impact on God's people? And how were several prophecies about them fulfilled over time?