sentences:  "Peace on Earth" was nominated for the 1939 Academy Award for Short Subjects (Cartoons), as well as for the Nobel Peace Prize.Friz Freleng, briefly assigned to work under Harman, returned to Schlesinger after his MGM contract expired in April 1939, and storyman Joseph Barbera was united with director William Hanna to co-direct cartoons for Rudolf Ising's unit.The partnership between Hanna and Barbera would last for more than six decades, until Hanna's death in 2001.