Hinduism
Hinduism is a religion of approximately one billion adherents representing the third largest religion of the world, yet it has no single "founder". The Vedas and subsequent commentaries (including Upanishads) were written by early sages but transcribed and organized by Maharshi Vyasa. Popular epics in Hinduism - the Ramayana and the Mahābhārata were composed respectively by Valmiki and Vyasa.
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