One Piece‘s manga has greatly expanded its world over the last two arcs, and Wano has introduced several new ideas to the franchise. With Wano being the source of the Sea Prism Stone, that means ...

One Piece first mentioned the Rocky Port Incident in the manga’s chapter 700, revealing that Trafalgar D. Water Law was the mastermind of the event.

The Ancient Weapons in One Piece took the spotlight after it was revealed that the World Government possessed one of these mass-destruction weapons in chapter 1116.

One Piece has introduced weapons with Devil Fruits, like Shanks's sword Shamrock. Benn Beckman's rifle could potentially be infused with a Devil Fruit, unique among traditional guns.