According to Greek mythology, Hades pulled Persephone down to the underworld while she was playing by Lake Pergusa. She was the daughter of the harvest goddess Ceres. Ceres was angry and wouldn't let anything grow until they came to an agreement that Persephone would spend six months above ground, which became spring and summer, and six months in Hades, which became fall and winter.
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On Ming Mountain in China, there is a group of temples and shrines that are all about the afterlife. When Yin and Wang went to the mountain to learn about Taoism, the place became known as a gateway to hell. Even though they achieved wisdom, the combination of their names- Yinwang, which means "king of hell," led to the construction of the city of ghosts atop the mountain.
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A sibyl was a prophetess or clairvoyant woman who could foretell the future. In Virgil's Latin epic The Aeneid, Aeneas goes to the Sibyl of Cumae's cave to find her. She told him that he needed to go to the underworld if he wanted to build Rome into a great country. So, Aeneas is taken to the underworld, where he meets the ghosts of many famous people who have died. The Aeneid says that a sibyl speaks through her cave, which has a thousand mouths and makes her voice louder. In 1932, a cave called the Cave of the Sibyl of Cumae was found. It did have more than one entrance and is considered one of the many gateways of hell around the world.
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