Hinduism is one of the oldest religions in the world, originating in India around 1500 BC. It has no single founder but developed over time based on the Vedas, Upanishads, and texts like the Bhagavad Gita. Hindus believe in concepts like Brahman as the ultimate reality, reincarnation influenced by karma, and different paths to moksha or liberation from the cycle of rebirth. Today, Hinduism has around 1 billion adherents globally and influences cultures in South Asia and beyond.