In early 1928, Walt Disney traveled to New York City, New York, to negotiate an increase in pay for the Oswald the Lucky Rabbit series with Universal’s distributor, Charles Mintz. Mintz offered Walt less money than he expected, and Walt learned that Universal, not Disney, owned the rights to Oswald. Walt would also learned that Mintz had hired away many of his animators. So Walt left New York City without a new deal, without Oswald and without most of his animators.
Walt was no doubt devastated, but also determined to be a success, and upon returning to California, he went to work immediately creating a new animated character. Along with Ub Iwerks, a new character was born, Mickey Mouse.