Once, there roamed Gods upon the Earth's face; before man had established his dominance so thoroughly by means of magic and science, long before great cities reached into the skies and burrowed deep into the ground.

Each was once a mortal, as is their custom, chosen by their predecessor to inhabit the position of guardian, of supervisor, and of deity. 

They held such tradition as an act of mercy for themselves, for each was originally human, and the human mind was not meant to hold thousands upon thousands of years worth of memories, emotions and experiences. 

Stolen story; please report.

Who elevated the first mortals to that almighty position? It is unknown, a fact lost to the sands of time, merely a grain of sand in a desert of histories.

Millennia passed, empires rose and fell, technology grew and the magical disciplines propelled civilisation through ages at an ever growing pace. Thus, with time, the races of Earth forgot their reliance on Gods. Adoration and reverence fell victim to ego and desire, the great histories of the Immortals turned to dust.

Still, the Gods existed.