Hinduism originated in India between 2500-400 BC when Aryan peoples migrated and mixed their polytheistic religions with local traditions. It has no single founder or theology but diverse scriptures including the Vedas and Upanishads. Hindus believe in an ultimate reality called Brahman and that individuals' souls (atman) can be liberated from endless rebirth (samsara) through proper conduct and spiritual knowledge. Major periods included the Vedic era praising gods like Indra, and post-classical era centered on gods like Brahma, Vishnu, and Shiva. Philosophies like yoga and vedanta aim to unite individuals with Brahman through meditation.