Title: Lucius Artorius Castus
Content:  In 1924, Kemp Malone was the first to suggest the possibility that Lucius Artorius Castus was the inspiration for the figure of Arthur in medieval European literature. More recent champions have included authors C. Scott Littleton and Linda Malcor. The hypothesis has been heavily criticized by prominent Arthurian scholars due to the historical Artorius Castus having very little in common with the Arthurian legends and the arguments relying excessively on speculation and wishful thinking. Due to the significant differences between the persons and careers of the historical Lucius Artorius Castus and the traditional King Arthur, the consensus of mainstream historians is that it is very unlikely the former inspired the latter. For example, 
Title: Arthur, Prince of Wales
Content:  The popular belief that Arthur was sickly during his lifetime stems from a misunderstanding of a 1502 letter, but there are no reports of Arthur being ill during his lifetime. Arthur grew up to be unusually tall for his age, and was considered handsome by the Spanish court: he had reddish hair, small eyes, a high-bridged nose, resembling his brother Henry, who was said to be "extremely handsome" by contemporaries. As described by historians Steven Gunn and Linda Monckton, Arthur had an "amiable and gentle" personality and was, overall, a "delicate lad". In May 1490 Arthur was created warden of all the marches towards Scotland and the Earl of Surrey was appointed as the Prince's deputy. From 1491, Arthur was named on peace commissions. In October 
Title: King Arthur
Content:   King Arthur (Brenin Arthur, Arthur Gernow, Roue Arzhur) was a legendary British leader who, according to medieval histories and romances, led the defence of Britain against Saxon invaders in the late 5th and early 6th centuries. The details of Arthur's story are mainly composed of Welsh and English folklore and literary invention, and modern historians generally agree that he is unhistorical. The sparse historical background of Arthur is gleaned from various sources, including the Annales Cambriae, the Historia Brittonum, and the writings of Gildas. Arthur's name also occurs in early poetic sources such as Y Gododdin. Arthur is a central figure in 
Title: Arthur of the Britons
Content:  The French poet Chrétien de Troyes created a version of a naive, victimised King Arthur who is betrayed by his wife and the man he believes to be his best friend Lancelot, and who ultimately comes to a tragic end. In Arthur of the Britons however, Arthur does not die, nor does he have to escape to Avalon or Brittany in France. In the penultimate episode, under threat of attack by the Scots, Arthur comes close to securing a treaty between himself, Cerdig and Yorath the Jute, but a carelessly placed target board results in a death, and old hostilities quickly re-surface. Arthur and his men return home, disappointed, but still hopeful that one day, there will be a lasting peace.
Title: King Arthur (2004 film)
Content:  Despite the film's supposedly historically grounded approach, much artistic licence is taken regarding historical figures, peoples, events, religion, wardrobe, and weaponry. The film places the story of Arthur not in its better-known medieval setting, but in the (still plausible) earlier times of antiquity, the early dawn of the Middle Ages – as did the earliest versions of the Arthur story. It would appear that the Arthur depicted in the film is based most closely upon Ambrosius Aurelianus, the Romano-Briton who fought against the Saxons in the 5th century, and was probably the leader of the Romano-British at the Battle of Mons Badonicus (Mount Badon). Nevertheless, Arthur's full name in the film is Artorius Castus, referring 
Title: Arthur Read
Content:  Arthur Timothy Read is the titular protagonist of both the book series and the PBS children's television series Arthur, created by Marc Brown. In the series, he is an 9-year-old anthropomorphic aardvark in Mr. Ratburn's third grade class and lives in the fictional city of Elwood City.
Title: Arthur
Content: Arthur, an animated educational television series for children ages 4 to 8, developed by Kathy Waugh for PBS, and produced by WGBH. ; Arthur Kirkland (アーサー・カークランド), the given human name for the personification of the United Kingdom from the anime series Hetalia: Axis Powers ; Arthur, a character 1991 American coming-of-age comedy-drama movie My Girl ; Arthur Curry, Aquaman ; Ser Arthur Dayne, a character from A Song of Ice and Fire book series ; Arthur Denison, the main character of the Dinotopia book series ; Arthur Dent, the main character of The Hitchhiker's Guide to the Galaxy series ; Arthur Dupres, a character in the American TV 
Title: Arthur video games
Content:  Arthur was a 1990s video game series developed by Creative Wonders and published by The Learning Company. The games were created as part of the LearningBuddies line.
Title: List of Arthur characters
Content:  Buster Baxter (voiced by Daniel Brochu, under-credited as Conway Bruce) is Arthur's best friend. He is a white rabbit who wears a turquoise long-sleeve polo shirt and jeans. He has asthma, is obsessed with aliens, is interested in comedy, is an amateur detective, and plays the tuba. He loves eating, practices gardening, and keeps expired food in his room and school desk. He is an only child whose parents divorced when he was younger. He created and celebrates a no-frills holiday called "Baxter Day" with his mother. His father travels the world due to his work as a pilot, and as a result they were given a spin-off series, Postcards from Buster. Buster is also a procrastinator, often preferring to have fun rather than study; one such instance nearly led to him flunking third grade before cramming at the last minute. He's based on Marc Brown's best friend when he was that age.
Title: Arthur (TV series)
Content:  Arthur is an animated educational television series for children ages 4 to 8, developed by Kathy Waugh for PBS, and produced by WGBH. The show is set in the fictional U.S. city of Elwood City, and revolves around the lives of Arthur Read, an anthropomorphic aardvark, his friends and family, and their daily interactions with each other. The television series is based on the Arthur Adventure book series, written and illustrated by Marc Brown. WGBH Boston along with Montreal-based Cinar (now WildBrain) began production of the animated series in 1994, and aired its first episode on October 7, 1996. Since its debut, the show has broadcast 249 half hour episodes. A pilot for the spin-off series Postcards from Buster aired in December 2003 as a season 8 episode of Arthur. Postcards from Buster aired from October 11, 2004, to November 

Question: who created arthur?
Answer: WGBH.