When Pluto was discovered in 1930, many people wrote in suggesting names for the new planet. Some suggestions were Cronus, Persephone, Erebus, Atlas, and Prometheus. Eleven-year-old Venetia Burney suggested the name Pluto. She thought it would be a good name since Pluto is so dark and far away, like the god of the underworld. On May 1, 1930, the name Pluto became official, and the little girl received a 5 lb. note as a reward.