The oldest known languages in the world include both Sanskrit and Tamil, each with a rich history of over 5,000 years. Sanskrit, originating in ancient India, is the classical language of Hinduism and the Vedas, while Tamil is one of the longest-surviving classical languages, still spoken today in southern India and parts of Sri Lanka. Both languages have deeply influenced literature, culture, and modern languages in the Indian subcontinent, making them key pillars of ancient human civilization.