Maggie Simpson Maggie's occasional speaking parts and other vocalisations are currently provided by Nancy Cartwright, but she has also been voiced by guest stars James Earl Jones, Elizabeth Taylor and Jodie Foster, and by series regulars Yeardley Smith and Harry Shearer. Maggie has appeared in various media relating to "The Simpsons" – including video games, "The Simpsons Movie", "The Simpsons" Ride, commercials and comic books – and has inspired an entire line of merchandise. "The Simpsons" uses a floating timeline in which the characters do not physically age, and as such the show is assumed to be set in the current year.
The Simpsons 2007, "The Simpsons" reached their 400th episode at the end of the eighteenth season. While "The Simpsons" has the record for the number of episodes by an American animated show, other animated series have surpassed "The Simpsons". For example, the Japanese anime series "Sazae-san" has over 7,000 episodes to its credit. In 2009, Fox began a year-long celebration of the show titled "Best. 20 Years. Ever." to celebrate the 20th anniversary of the premiere of "The Simpsons". One of the first parts of the celebration is the "Unleash Your Yellow" contest in which entrants must design a poster for the