Adult Swim (also called [adult swim]) is the late-night counterpart to Cartoon Network. It began on September 2, 2001 and was created by Williams Street Studios. On March 28, 2005, Nielsen Media Research shows that Adult Swim is now separate from Cartoon Network (like Nickelodeon's Nick at Nite). Adult Swim is part of Turner Broadcasting System. It is known for showing mature, adult anime, or Japanese-style animation.