User blog comment:Monkey.D.Me/Theory on Void Century/@comment-3425840-20110621004456

I think there is more to it, the predecessors of the World Government i.e the league of the Twenty Kings must have some cheating/great evil thing in the void century to take over, that's why they don't want the history to be known. In my opinion they somehow took over some power/authority that rightfully belonged to the ancestors of the present D bearers. It could be an ancient weapon or something else of immense power. I also think that the Gorosei currently has that power which is the source of their authority. Moreover, I think the Devil fruits have got something to do with it. Maybe when Vegapunk would be introduced in person we will know that secret, as Oda said in a SBS that a certain professor will be introduced who will elaborate on what devil fruits truly are. Well we will see, let's have faith in Oda-sensei.