One Piece: Story before the Pirate Era.

900 years prior an old kingdom ruled the world. The nature of this kingdom is secret/mystery as it's presence been cleaned from history by twenty rulers who united together to eliminate it.
The set of experiences books report that 100 years after the fact was the beginning of the World Government. the new administering power of the world, driven by the twenty lords. What occurred during this hundred years is obscure and is presently alluded to as the Void Century (The Lost 100 Year in the History), yet it denoted an adjustment of things to come of the world.
Streak forward to around 800 years after the fact. A privateer named Gol D. Roger arose to store up such riches, popularity and influence that he got known as the Pirate King. During when the strength of the World Government was grinding away's generally incredible, a privateer like Roger was an enormous danger to the security of their realm. Not in view of his temperament as a lawbreaker, yet for the uplifting opportunity that he lectured through the occasions of his heritage.
After numerous years, as the Government at long last caught the Pirate King (in truth he handed himself over intentionally) and drove him to the scaffold, Roger's final words would again shift the direction of things to come. He declared the presence of the world's most noteworthy fortune - a zenith of what he had left behind covered up toward the finish of The Grand Line, the most hazardous ocean on the planet.
This day denoted the start of the Great Pirate Era where men would leave their lives to seek after the fortune known as the One Piece and the related title of Pirate King. It additionally denoted the beginning of our story of a kid called Monkey D. Luffy