The first Diary of a Wimpy Kid book was published, introducing readers to the protagonist Greg Heffley and his humorous middle school experiences.
The release of the second installment, 'Rodrick Rules', continued the series and expanded its popularity among young readers.
The live-action movie adaptation of Diary of a Wimpy Kid was released, increasing the franchise's reach.
The third film in the series was released, based on the 'Dog Days' book from the series.
A live-action film based on the 'The Long Haul' book was released with a new cast.
The first animated film adaptation was released, bringing a fresh take to the franchise.