The Ninja Turtles are a team of four teenage mutant ninja turtles who were trained by their adoptive father, Master Splinter. They live in the sewers of New York City and fight crime while trying to stay out of the reach of their arch-nemesis, The Shredder. The Ninja Turtles are named after four Renaissance artists: Leonardo, Michelangelo, Donatello, and Raphael. The Ninja Turtles wear brightly colored bandanas (Leonardo wears blue, Michelangelo wears orange, Donatello wears purple, and Raphael wears red) and they wield different signature weapons (Leonardo wields two katanas, Michelangelo wields nunchucks, Donatello wields a bo staff, and Raphael wields two sais). They are also known for their love of pizza. The Ninja Turtles were created in 1984 by comic book artists Kevin Eastman and Peter Laird. They first appeared in an issue of Mirage Studios' Teenage Mutant Ninja Turtles comic book series. The Ninja Turtles became popular in the late 1980s and early 1990s due to their successful comic book series, cartoon series, and live-action movies. Today, the Ninja Turtles are still popular among children and adults alike. Their merchandise includes toys, clothes, video games, and more. The Ninja Turtles are a classic example of pop culture icons that have stood the test of time.