Hinduism and Buddhism both emerged in ancient India and share some core beliefs, but differ in key aspects. Hinduism has no single founder or sacred text and accepts countless gods, while Buddhism was founded by Siddhartha Gautama who rejected Hindu gods and rituals. Both religions believe in concepts like karma, dharma, and samsara (cyclical rebirth), but Buddhism aims for nirvana (liberation from samsara) through following the Eightfold Path and meditation, unlike Hinduism's goal of moksha through dharma. Buddhism also split into two main sects with different interpretations and practices.