Mr. Magoo's first appearance was in the theatrical short cartoon "The Ragtime Bear" (1949), scripted by Millard Kaufman. His creation was a collaborative effort; animation director John Hubley is said to have partly based the character on his uncle Harry Woodruff, and W. C. Fields was another source of inspiration. In a legend circulating among medievalists, Harvard University professor Francis P. Magoun is also said to have been the model for the character. However, there is no evidence that artist Hubley knew the scholar. Columbia was reluctant to release the short, but did so, only because it included a bear. However, audiences quickly realized that the real star was Magoo, one of the few "human" cartoon characters ever produced in Hollywood at the time. The short became a box-office success.