The Bali (Daitya) reference article from the English Wikipedia on 24-Apr-2004
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Bali (Daitya)

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In the Hindu Puranas, Bali is a Daitya, an enemy of the gods, who claimed all of the heavens, earth and the underworld. Vishnu, in his avatar as Vamana, asked for a piece of land only three paces wide. Bali agreed and Vishnu crossed the heavens in one step, the earth in another and left Bali only the underworld to rule over.