Eiichiro Oda hints that the first person to break out from the Impel Down prison in One Piece wasn't Monkey D. Luffy.

Impel Down is a massive, underwater maximum-security prison in One Piece that serves as one of the World Government's main strongholds. It is used to hold the world's most dangerous pirates and ...

Impel Down's sixth floor, "Eternal Hell," houses the most powerful pirates with life or death sentences. Sanjuan Wolf, a Blackbeard Pirate, is the largest giant and one of the Ten Titanic Captains.

One Piece Chapter 1166 might have given a major hint about the real reason why Garp wanted Luffy and Ace to become Marine ...