Kevin Eastman and Peter Laird create the Teenage Mutant Ninja Turtles as a comic book series.
The first issue of Teenage Mutant Ninja Turtles comic is published by Mirage Studios.
The original animated TV series of Teenage Mutant Ninja Turtles premieres and gains widespread popularity.
The first live-action Teenage Mutant Ninja Turtles film is released in theaters.
The second live-action Teenage Mutant Ninja Turtles movie is released.
The third live-action Teenage Mutant Ninja Turtles movie is released.
A new animated Teenage Mutant Ninja Turtles series debuts, marking a reboot of the franchise on television.
A new live-action Teenage Mutant Ninja Turtles movie is released, produced by Michael Bay.
The sequel to the 2014 TMNT movie is released in theaters.
A new animated television series reboot titled Rise of the Teenage Mutant Ninja Turtles premieres.
Four baby turtles are accidentally dropped into the sewers of New York City and come into contact with a radioactive substance called mutagen, causing them to mutate into humanoid turtles.
Splinter, a pet rat, is exposed to the same mutagen and transforms into a humanoid rat, becoming the turtles' mentor and father figure.
Splinter begins training the turtles in ninjutsu to prepare them for the challenges ahead.
The turtles meet April O'Neil, a human ally who becomes their friend and confidante.
The turtles engage in their first major battle against the Foot Clan, an evil ninja organization led by the Shredder.
The turtles succeed in defeating Shredder, their greatest enemy, greatly weakening the Foot Clan.
The turtles meet Casey Jones, a vigilante who becomes an ally and close friend.
April is kidnapped by the robotic Mousers controlled by the Foot Clan, prompting the turtles to rescue her.
The turtles acquire and customize their vehicle, the Turtle Van, to aid in their missions.
The turtles confront Krang, an alien warlord from Dimension X, who threatens Earth with his technology and armies.
The mutants Bebop and Rocksteady are created by Shredder to battle the turtles.
The turtles thwart Krang and Shredder's plan to invade Earth using their mobile fortress, the Technodrome.
