1955
· Fred Quimby,William Hanna & Joseph Barbera
· 8m 29s
Peace on Earth is a one-reel 1939 Metro-Goldwyn-Mayer cartoon short directed by Hugh Harman, about a post-apocalyptic world populated only by animals, after human beings have gone extinct due to war. The film's copyright was renewed in 1966, and it will enter the American public domain on January 1, 2035.
— Wikipedia