One Piece Manga released One Piece Chapter 1065 which reveals the truth about the Void Century and the Ancient Kingdom! With Egghead Island not being the island of the future but actually, Egghead Island is the island of the past. Vegapunk reveals that the Technology from egghead island its very similar to the technology that was created 900 Years ago in the Ancient Kingdom. Meaning Vegapunk has knowledge of the void century and the ancient kingdom which is why Im-Sama want to kill him so that knowledge doesn’t leak out. We explained how such civilization was created and how they had an infinite source of energy.