Question: Which character has been around the longest, Tron or Dumbo?

Context paragraphs:
Dumbo: Dumbo is a 1941 American animated film produced by Walt Disney Productions and released by RKO Radio Pictures.  The fourth Disney animated feature film, it is based upon the storyline written by Helen Aberson and illustrated by Harold Pearl for the prototype of a novelty toy ("Roll-a-Book").  The main character is Jumbo Jr., a semi-anthropomorphic elephant who is cruelly nicknamed "Dumbo".  He is ridiculed for his big ears, but in fact he is capable of flying by using his ears as wings. Throughout most of the film, his only true friend, aside from his mother, is the mouse, Timothy – a relationship parodying the stereotypical animosity between mice and elephants.

Street Trace NYC: Street Trace NYC is a cel-shaded combat hoverboard racing game set in the Boroughs of New York City outside Manhattan by independent software developer Gaia Industries for the Xbox 360's Xbox Live Arcade service.  The game gets its name from the New York City setting and the "Tron"-like light trails the hoverboards generate.  The game was released on August 22, 2007. The game is reported to have had one of the longest development cycles of any of the Xbox Live Arcade titles, with a supposed initial release date planned for the date of Xbox 360 launch on November 22, 2005.  The game languished in development until it was finally released in August 2007.

Dumbo's Circus: Dumbo's Circus is a live action/puppet television series that aired on The Disney Channel beginning on May 6, 1985, and featured the character of "Dumbo" from the original film.  The series was in production for three and a half seasons, and reruns continued to air until February 28, 1997.

Tron (franchise): Tron is an American science fiction media franchise.  It began in 1982 with the Walt Disney Pictures film "Tron".  It was followed by various film tie-ins, a comic series and the 2010 sequel "".  More sequels were planned but have now been suspended, and a premiered on Disney XD in June 2012.

Bill Melendez: José Cuauhtémoc Meléndez (November 15, 1916 – September 2, 2008), known as Bill Melendez, was a Mexican American character animator, film director, voice artist and producer, known for his cartoons for Walt Disney Productions (working on four Disney films "Pinocchio", "Fantasia", "Dumbo" and "Bambi"), Warner Bros.  Cartoons, UPA and the "Peanuts" series.  Melendez provided the voices of Snoopy and Woodstock in the latter as well.

Milt Neil: Milt Neil (May 30, 1914 - October 18, 1997), sometimes known as "the Duck Man", was a career character animator.  He worked for Disney Studios from 1935 to 1944.  He worked on "Dumbo", "Fantasia", "Snow White and the Seven Dwarfs", and "Der Fuehrer's Face".  He became involved with "Howdy Doody".  He ran the character animation program at the Joe Kubert School of Cartoon and Graphic Design.

Dumbo the Flying Elephant: Dumbo the Flying Elephant is an aerial carousel-style ride located in Fantasyland at six Disney parks around the world.  It is based on the 1941 film, "Dumbo".  The original attraction opened at Disneyland in October 1955, three months after the park opened.  The four other versions of the attraction were opening-day attractions at their respective parks.

Dumbo (air-sea rescue): Dumbo was the code name used by the United States Navy during the 1940s and 1950s to signify search and rescue missions, conducted in conjunction with military operations, by long-range aircraft flying over the ocean.  The purpose of Dumbo missions was to rescue downed American aviators as well as seamen in distress.  Dumbo aircraft were originally land-based heavy bomber aircraft converted to carry an airborne lifeboat to be dropped in the water near survivors.  The name "Dumbo" came from Walt Disney's flying elephant, the main character of the animated film "Dumbo", appearing in October 1941.

Colin Irwin (journalist): Colin Irwin is a British music journalist.  Irwin was an assistant editor of "Melody Maker" in the 1970s and 1980s, before leaving in the summer of 1987 as the magazine moved in a different direction, and editor of "Number One" magazine in the late 1980s and early 1990s.  His book "In Search of the Craic" details a comic journey around Ireland seeking out pub music sessions and became a best-seller in Ireland.  Subsequent books were "In Search Of Albion", a similarly light-hearted journey around English traditions and rituals and "Sing When You're Winning", about the history and culture of terrace songs at football matches.  He's also reviewed music for "The Guardian", "Mojo", "The Daily Telegraph", "The Independent", "fRoots" and Spiral Earth and has been a Mercury Music Prize judge.  He reviews mainly singer-songwriters, folk rock, Celtic and traditional folk albums.  He has also presented music programmes on BBC Radio 2.  His play "The Corridor" has been performed in Surrey and Yorkshire.  Other plays he has written which have been performed on stage in different parts of the country include 'One Of Us Is Lying', 'When Barry Met Cally' and 'I Am The Way'.  In 2017, his theatrical music show, 'She Moved Through The Fair: The Legend Of Margaret Barry', co-written with Irish singer Mary McPartlan was successfully debuted in front of a sell-out audience at Glasgow's Tron Theatre as part of the Celtic Connections festival.

TRON (encoding): TRON Code is a multi-byte character encoding used in the TRON Project.  It is similar to Unicode but does not use Unicode's Han unification process: each character from each CJK character set is encoded separately, including archaic and historical equivalents of modern characters.  This means that Chinese, Japanese, and Korean text can be mixed without any ambiguity as to the exact form of the characters; however, it also means that many characters with equivalent semantics will be encoded more than once, complicating some operations.

Supporting paragraphs: Tron (franchise) Dumbo
Answer: Dumbo