2160 is too neat a number as well
Agreed, which is why i haven't responded until it dawned on me what could be going on
it is a precise precessional number as in the number of years of an age - at least as measured in the precessional figure from early days 7 mentioned either directly or in multiples in many societies, & 72 x 30 = 2160 & 12 x 30 = 360º & 12 x 2160 = 25,920 so we have one complete precessional cycle.
So what we have is a precessional cycle that lasts 25,000-something years [now: 25,556]; that's the time it takes for the galactic center to come into alignment with Earth again.
Now, the Anunnaki came to Earth, a hierarchal authoritarian tradition-ruled elite body politic; according to sources like Sitchin, they decided to divide rule over Earth among 12 of them, to each an age.
Why? That is the question. Why 12?
The answer is ultimately simple and explains why an age lasts about 2160 years to begin with.
They could have divided the galactic year in 100 parts, or any number, why 12?
Because 12 is the times that Nibiru passes Earth during the time it takes Earth to realign with the galactic center.
The zodiac was created BY the Anunnaki. Look at it: the signs in the sky don't look like the stars they're drawn around at all. They're just a few dots that make up a zodiac sign. The signs have significance and the number of them have the significance that Nibiru comes by every time a sign changes.
Look at Sagitarius and Scorpio, how their arrows [the archer's arrowpoint and the scorpion's tail] point to the galactic center
; the signs have meaning.
They divided 25,000 something by 12 because of the time it takes Nibiru to come by Earth, the planet they were on and upon which they created their taking-turns aeon politics.
And 11,000BC is distinctly not the time of the ice age ending, it is more like the end of the ending - the beginning of the ending began about 8,000 - 10,000 years earlier than that. [...]
(Mind you, it's been a while - I may be mixing up Lake Missoula with lake Agassiz)
You obviously know your geological history. Respect!
I'm getting the idea, by now, that the coming of Nibiru, a 13,000 [half of the 25,000+ cycle] galactic superwave occurance, and the one-time Great Flood are all in a great mix that makes it hard to make sense of what's been going on in the last 13,000 years.
Calculated guesses are all we might be able to hope for but knowing that we aren't stuck to the number 12, i.e. the Anunnaki-made zodiac, is a good place to start, i think.