Vishnu Purana

One of the eighteen Mahapuranas of Hindu tradition and among the most systematically organized, the Vishnu Purana sets out Vaishnava cosmology, the cyclical structure of time in kalpas, manvantaras and yugas, the genealogies (vamsha) of solar and lunar dynasties and of the gods, and an account of Krishna's life that later Puranas, especially the Bhagavata Purana, expand at far greater length. Traditional dating places its core compilation in the early centuries of the Common Era, with later interpolation, as is typical of the Purana genre; authorship is traditionally credited to the sage Vyasa, the legendary compiler of the entire Puranic corpus, though modern scholarship treats this as an attribution rather than a historical claim about a single author.