Most ancient cultures speak of a time when their GODS visited them. They never say their GODS came from across the ocean, or from the mountains. They always came down from the skies. Was ancient man visited by GODS or Extraterrestrials? Knowledge Apocalypse ("lifting of the veil" or "revelation") is a disclosure of something hidden from the majority of mankind in an era dominated by falsehood and misconception, i.e. the veil to be lifted.