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According to "The Origin of the Seasons", what was Persephone's snack, and how did that create the seasons?
She ate seven seeds of a pomegranate.
There are seven months in which Persephone is in the underworld with Hades and those are the seasons of fall and winter. Persephone is allowed to live the other five months of the year with her mother Demeter, who allows everything to grow during the spring and summer.