section_path: History/American golden age
section_name: American golden age
paragraph_text: American golden age
  
  In 1928, Steamboat Willie, featuring Mickey Mouse and Minnie Mouse, popularized film-with-synchronized-sound and put Walt Disney 's studio at the forefront of the animation industry. Although Disney Animation's actual output relative to total global animation output, has always been very small; the studio has overwhelmingly dominated the "aesthetic norms" of animation ever since.
  
  The enormous success of Mickey Mouse is seen as the start of the golden age of American animation that would last until the 1960s. The United States dominated the world market of animation with a plethora of cel-animated theatrical shorts. Several studios would introduce characters that would become very popular and would have long-lasting careers, including Walt Disney Productions ' Goofy (1932) and Donald Duck (1934), Fleischer Studios / Paramount Cartoon Studios ' Out of the Inkwell ' Koko the Clown (1918), Bimbo and Betty Boop (1930), Popeye (1933) and Casper the Friendly Ghost (1945), Warner Bros. Cartoon Studios ' Looney Tunes ' Porky Pig (1935), Daffy Duck (1937), Elmer Fudd (1937–1940), Bugs Bunny (1938–1940), Tweety (1942), Sylvester the Cat (1945), Wile E. Coyote and the Road Runner (1949), MGM cartoon studio 's Tom and Jerry (1940) and Droopy, Universal Cartoon Studios ' Woody Woodpecker (1940), Terrytoons / 20th Century Fox 's Mighty Mouse (1942), and United Artists ' Pink Panther (1963).