Walt Disney Britannica. Cheaper99.com has been visited by 1m+ users in the past month 15, 1966, los angeles, calif.), u.s.Walt Disney’s First Cartoon Critter Was Not Mickey Mouse Britannica from www.britannica.com15, 1966, los angeles, calif.), u.s. Web for the full article, see walt disney. 5, 1901, chicago, ill., u.s.—died dec.