Actually one online with all the research studies slotted in, with dates & links would be grand!!
Needs cataclysms, too, starting back 300,000 BCE or more ... Catch the trilobite wipe, too!!
Then overlay it with Earth's oscillation up and down through the galaxy ecliptic ... (Wondering if all the major disasters time to this point)!
Then the ethnogen channeler speaking to Terrence about the Timewave, would make more sense saying it needed a zero point!
The Maya zero is fascinating in itself, pointed to now, and its first use has not been explained.
Hunting a good timeline, thought I'd ask.
Mind is the rider.