When did persephone live?

Persephone is a mythological figure. There is no evidence that she lived at all. The seasons are created by the elliptical orbit of the earth around the sun, but the ancient Greeks did not know that, so the legend of Persephone was created to explain the changing of the seasons. but according to greek mythology, she lived during the four winter months with her husban hades in the underworld and the remaining months with her mother