The scaly aboriginal inhabitants of Andrus began recording histories well over fifty thousand years ago. Waer Memory stones begin their records over twenty thousand years ago. Fae lorekeepers have been recording their story on Andrus for nearly fifteen thousand years. Human history began just over five thousand years ago.
The borders between Andrus and the elemental planes of existence are thin and breached at specific nodes allowing elemental creatures and energies to pass into and out of the world with minimal effort. The borders between the transitive planes, Astral and Ethereal, are also thin making manipulation of energies from them easier.