Nowhere in history do we find one. Anyone positing such a thing must point to pre-history with no evidence. The entire tradionalist school of thought is a lie. The only shred of evidence they have is to point at Indian literature such as the Mahabharata where over 1000 people were dying per second in a strangely futuristic war. Ignoring the losses of meaning via translation. The fact that Evola so heavily citea the Upanishads while his modern adherents reject Hinduism completely is funny. IIf Guenon was resurrected he would upon seeing what has occurred kill himself.
How do you read about 1.6 billion people dying in the space of 18 days and determine that this was in fact not some kind of dark age?