Glaciations, or "ice ages," were largely regional, and did not always have clear boundaries in time or geography. Dating of these climate periods is largely uncertain, and the periods themselves are full of variations — warming periods during the ice ages, and cooling periods during the interglacials (warmer eras).

In the history of Egypt, the lineage of kings went back much further than Menes of the First Dynasty, or the Scorpion King of the "Zero Dynasty." Manetho, the Egyptian priest who is the reputed compiler of the "king list," included a set of gods and demi-gods amongst the kings before Menes. The span of their reigns covers many thousands of years. Scholars relegate to myth those kings before the first dynasty.

Manetho was a third century BCE Egyptian priest. What we have of the priest's work is only second-hand. None of his original manuscripts have yet been found.

Historians acknowledge Manetho's work because of the circumstantial evidence from other writers, yet they dismiss the list of demi-gods and gods as fiction. Could it be that there is some truth behind those "myths." It may prove far simpler than most would think to make some sense of those myths. It may be that all one needs is a new method for looking at myths.

The chart below shows events documented from history and science (above the timeline), and background elements from the novel (below the timeline). The green bars portray the periods of history — those periods of civilization with writing, and thus a social memory. Only the most recent is known with any certainty. After all, we are living in it. The other three periods are backstory for the novel.