also, yeah, about the Yuga thing

around 24000 years is the orbital period of our solar system around the galaxy

every quarter of this cycle we come to a seasonal phase related to the alignment of the galactic center's magnetic field

every time we pass these 90 degree points, briefly the magnetic fields of everything around us get neutralised, and everything is in horrible chaos, the sun usually has a massive explosion or 10 in a short burst and in the incoming and outgoing period between that giant blast life is irradiated and in the period after, a lot of nasty rocks congeal out of the exploded material and then pummel everything, after the first insult of the destroyed magnetic field and the radiation

last period i think this was relatively mild, a lot of storms and earthquakes and floods and whatnot, enough to wash a lot of large animals into pits to be preserved in fine dusty dirt, the previous cycle has also got some records still existing also hinting further at the relatively mild situation that was the Noah event... well i'm still equivocal - i think noah was 12k years ago on a "big" cycle 180 point (opposition) and that the 6k was summarised in "building and collapse of the tower of babel.

this is a somewhat unconventional picture that i can't entirely justify except if you said "i pay you a week's wages to spend a week digging up material to back that up" and i bet i can find it, but i just got that vibe out of reading a lot of old stuff and a good thesis suggesting that Noah was actually the last "big" cycle and that the tower of babel, no matter how awful it actually was, and you can read about several accounts of it in apocrypha, but that was the 6000 years ago incident, the story with Lot - yeah, impactor, meteor impact...

reading especially Jasher and Jubilees i recommend for catching some more parts of the story that is the pretext to the rise of Abraham, i think you'll agree when you read other versions of that, that it's a pattern that matches the 6000 year point in terms of being a minor phase between the strong phases that cause your Great Flood and Evil Sun incidents, that actually wipe out over 90% of the everything population