User blog comment:FairyRaven/Fairy Tail Chapters 338, 339, 340: Review and Commentary/@comment-5598380-20130706211549/@comment-203.215.121.141-20130707050853

"In Greek mythology, Tartarus is both a deity and a place in the underworld. In ancient Orphic sources and in the mystery schools, Tartarus is also the unbounded first-existing entity from which the Light and the cosmos are born."

I wonder if Mashima likes Mythology since some names are also from Mythology.

http://en.wikipedia.org/wiki/Tartarus