I have a question regarding whether or not the number of kalpas which have occurred is known?

In the chance that it isn’t, something which was brought up in the Hunt for the Amaranth thread spurred this; the Anuad, particularly this bit here.
” On the world of Nirn, all was chaos. The only survivors of the twelve worlds of Creation were the Ehlnofey and the Hist.”
Now I’m unsure of the validity of the theory of the Hist coming from a different kalpa, but I seem to recall it being discussed sometime prior to Skyrim being released.
If there is some evidence which would suggest that they are indeed from another kalpa, what is to say that the “Twelve worlds of Creation” aren’t necessarily twelve different worlds, but twelve separate kalpas?

I apologize in advance if this has already been discussed and debated to death in the interim between Skyrim’s release and now, I only just began paying attention to the Lore forum again.