Buddhism originated in northern India in the 5th century BCE with Siddhartha Gautama, known as the Buddha. After experiencing both luxury and poverty, the Buddha attained enlightenment under a Bodhi tree and discovered the Middle Way of moderation. He taught the Four Noble Truths about suffering and its causes, and the Noble Eightfold Path to end suffering through eliminating craving and ignorance. Buddhism spread from India and has various sects today, with core teachings including karma, rebirth, and meditation.