There is an "evolution of immortality," and it has been age-long, but it is pre-human.
Or, first abstraction; then pre-human effluence; then emanation.
Man's body is a veritable museum of relics (vestigial structures) inherited from pre-human ancestors.
To appreciate this evidence, we must go back, as in the case of Egypt, to the pre-human period.
Now we know that it is similarly useless in all tribes of men, and must therefore come from a pre-human ancestor.
Wheels are the things that are as old as mankind and yet are strictly peculiar to man, that are prehistoric but not pre-human.