The Three Little Pigs won the Academy Award for Best Short Subject in 1934.
The award recognized the 1933 Disney animated short at the sixth Academy Awards ceremony, held in 1934. Its success helped establish Walt Disney’s studio as a leading force in animated filmmaking during the 1930s.
The cartoon follows three pigs whose different approaches to building houses are tested by the Big Bad Wolf. Its song “Who’s Afraid of the Big Bad Wolf?” became an enormous popular success and helped make the characters famous beyond the cinema.
The year can cause confusion because the film was released in 1933, but the Academy Award ceremony took place in 1934. The question asks for the award year, not the release year.