Walter Frederick Morrison disc more cheaply. In 1955, he and Lu designed the Pluto Platter, the archetype of all modern flying discs. On January 23, 1957, they sold the rights for the Pluto Platter to the Wham-O toy company. Initially Wham-O continued to market the toy solely as the "Pluto Platter", but by June 1957 they also began using the name "Frisbee" after learning that college students in the Northeast were calling the Pluto Platter by that name. Morrison also invented several other products for Wham-O, but none were as successful as the Pluto Platter. Morrison and his wife, Lu Nay Morrison had
Pluto (mythology) of other deities, including Summanus, the Roman god of nocturnal thunder; Februus, the Roman god from whose purification rites the month of February takes its name; the syncretic god Serapis, regarded as Pluto's Egyptian equivalent; and the Semitic god Muth (Μούθ). Muth was described by Philo of Byblos as the equivalent of both Thanatos (Death personified) and Pluto. The ancient Greeks did not regard Pluto as "death" per se. The best-known myth involving Pluto or Hades is the abduction of Persephone, also known as Kore ("the Maiden"). The earliest literary versions of the myth are a brief mention in Hesiod's