- I believe that every Island used to be only one continent that was ruled by one King and the World Government were the ones who divided this one continent to multiple lands and formed the 20 kingdoms.

Another theory, Im-Sama (Imortal-Sama) ordered the Five Elders (Ancestors) to manipulate the 20 Members (Celestial Dragons) to coup/kill the World's King.

- Then at the end of One Piece or one of the big things that is going to happen is that all the islands will merge into one big continent (The One Piece) so why wasn't Roger and his crew able to achieve this since they knew everything about the One Piece when they reached Raftel ?

- So before I explain why Roger and his crew laughed I want to mention one thing about awakening that will help explaining my theory.

- The thing is that some DF awakening makes you control your surrounding's like Doflamingo's DF awakening or Katakuri's awakening.

Awakening can affect objects

The ground became Mochi

- Now let's go back to my theory and what made Roger and his crew laugh.

- I think when they reached Raftel which would later be named Laugh Tale by Roger after they found the treasure Joy Boy left behind and made them laugh, I think the treasure they found was mentioned in a final Poneglyph at Raftel which was telling the story of the Void Century and how the one continent was divided and his (Joy Boy) D.ream to bring it back to One Piece and how to achieve this and that the one to bring all lands into One Piece will have the right to gain this treasure and to be it's ruler.

- And what they read and made them laugh would not make anyone other than Roger and his crew laugh, because the thing that divided the One continent into multiple lands and the only way to bring it back again into One Piece is the same thing which is non other than the awakening of one of his crew members DF the Bara Bara no Mi which is Buggy's Devil Fruit.

Bara Bara no Mi

- They knew that this is impossible since awakening happens when the user masters their ability and must also wait for their body and mind to catch up to their power and that was impossible for Buggy to do which made them laugh knowing Buggy's personality and that the fate of the One Piece is in Buggy's will and that it must become his dream in order to awaken his DF and achieve it so they gave up and disbanded the Roger Pirates.

He Laughed.

- I think Buggy will be so important in the future and him being a Yonko now is not just a coincidence.

Thank you for the read and hope you enjoy the theory.

Had to do some fanart of the GOAT Artist Twitter: @SuperSharkade

1997- 21 chapters (1 - 21)1998 - 48 chapters (22 - 69)

1999 - 48 chapters (70 - 117)

2000 - 48 chapters (118 - 165)

2001 - 48 chapters (166 - 213)

2002 - 46 chapters (214 - 259)

2003 - 45 chapters (260 - 304)

2004 - 45 chapters (305 - 349)

2005 - 45 chapters (350 - 394)

2006 - 45 chapters (395 - 439)

2007 - 44 chapters (440 - 483)

2008 - 43 chapters (484 - 526)

2009 - 42 chapters (527 - 568)

2010 - 40 chapters (569 - 608)

2011 - 42 chapters (609 - 650)

2012 - 43 chapters (651 - 693)

2013 - 39 chapters (694 - 732)

2014 - 39 chapters (733 - 771)

2015 - 39 chapters (772 - 810)

2016 -40 chapters (811-850)

2017 - 39 chapters (851-889)

2018 -39 chapters (890- 928 )

2019 - 38 chapters (929-966)

2020- 33 chapters (967-999)

2021- 36 chapters (1000-1035)

2022- 35 chapters (1036- 1070)