[null and void]

There is a pretty good body of evidence that our Sun has a major event, a micronova, every 12,000 years.

The last one was about 12,000 years ago...

[Max in Utah]

...a micronova, every 12,000 years.

Hopi legend says their people emerged from underground caverns to live in the present Fourth World. Could they have been the survivors of a solar event of some kind?