:''For the comic book series of the same name, see Bart Simpson (comic book series).''
200px|thumb|Bart with Conan O'Brien
'''Bartholomew Jo-Jo Simpson''' (born April 1, 1981, remains 10 through the series), better known as '''Bart''', is a fictional character featured in the animated television series ''The Simpsons''. He is the oldest child and only son of Homer and Marge Simpson, and the brother of Lisa and Maggie. Along with his father Homer, Bart is arguably the most well-known and recognizable character on the long running animated series. Both Bart and Lisa ranked #11 in TV Guide's Top 50 Greatest Cartoon Characters of All Time. He is voiced by Nancy Cartwright, who claimed that he is the only person in the Simpson family that has the middle name Jojo, mentioned in Simpsons Comic Royale. He, and The Simpsons, were created by Matt Groening.
Age
According to ''The Simpsons Uncensored Family Album'', his birthday is April Fool's Day. According to the show's chronology, Bart was born in 1982 as he is two years and 38 days older than Lisa, who was born during the 1984 Summer Olympics. However, in "I Married Marge", it was revealed that Bart was conceived in June 1980 (Homer and Marge had just seen ''The Empire Strikes Back''), which would make his birthday April 1, 1981. The year is clearly not consistent as Bart is always described as being 10 years old. Despite this Bart's 10th birthday has been depicted in "Radio Bart". Indeed, Krusty the Klown expresses surprise when Bart tells him he voted for him (multiple times) for Congress: "But you're only ten."
Profile
He is a self-proclaimed underachiever who begins each show in detention writing lines on the blackboard. He is pretty much distracted by anything, even, strangely enough, algebraic equations. His penchant for shocking people began before he was born: Bart "mooned" Dr. Hibbert while he performed a sonogram on Marge, and moments after being born (presumably on purpose), he set fire to Homer's tie. He is considerably undermotivated and takes great joy in disrupting the routine at Springfield Elementary, yet his pranks are often elaborately complex, while his actions and speech frequently show considerable mental agility, street-smarts, and understanding, so he cannot be called "stupid" per se. Bart also shows amazing intelligence outside of his pranks. Out-smarting Sideshow Bob, figuring out how to save the snakes on Whacking Day, getting the lemon tree back in a Trojan Horse method, giving advanced knowledge about George Washington in the French and Indian war, and learning other languages are just a few examples. In "Separate Vocations" when Bart becomes hall monitor, his grades go up showing that he only struggles
