Re: the start of the Cabal
From what I can tell there was a long period of instability following the catastrophe - the breakdown at the end of the Ice Age c10,500BC was followed by a second melt c7,500BC. If we use the Zodiac as a marker (thinking precession of the Equinoxes), then the first sign that starts to appear in art is the sign of Taurus, which was c4,500 - c2,300BC, which maps to the Egyptian Old Kingdom. The Old Kingdom came to an end c2,200BC and Egypt fell into decline and didn't really get started again until the New Kingdom c1,500BC, which is the age of Aries. I think of this as Egypt's 'Hollywood' period and if I have to nail the start of the Cabal to a particular period in history this is it.
This is the period when the gods became important in the daily lives of people, when the priests started with their sex rituals and the Pharoah was deemed a living god. The 'right of Kings' can be traced to this period. Historically, when the gods roamed the Earth, Ra gave them ownership over the humans, who were to be treated as cattle (where have we heard that line before?). It would therefore follow that the Pharoahs with their divine right of Kings, as incarnations of the gods, could do what they wished with their human herd.
My guess is that the Cabal and their bloodlines all fall out from this period.