User blog comment:FairyRaven/Fairy Tail Chapter 337: The Golden Plains, Review and Commentary/@comment-77.195.192.48-20130628104342/@comment-15267891-20130628105459

The main purpose of the Eclipse Gate is to travel 400 years ago to a time when Zeref is still immortal. Is it confirmed that Zeref made Acnologia? I think it was just a theory from Arcadios...