The period of the Judges from 1451 BC until the defeat of the Amalekites by Saul and Amhose was the first dark age. Countries fell from their high levels of civilization and technology while Arab invaders ruled the great civilizations of Egypt, Sumer and Assyria.
Slides here:
https://docs.google.com/presentation/d/13K5L__Q0FxH9hZqCYvjfRCh1l6jHDE6Jl4Xhp-9HRq8/edit?usp=sharing Faithful John and the Futile Resistance of Evil The Lineage of Jesus Christ