Hinduism was established in India in 1500 BCE, featuring texts like the Vedas and a caste system. The Upanishads taught concepts like samsara, karma, and moksha. Siddhartha Gautama was born in 480 BCE and discovered suffering through encountering old age, disease, and death. He attained enlightenment and became the Buddha, spreading his teachings of the Four Noble Truths and Noble Eightfold Path through India and Asia. Buddhism is considered both a philosophy and religion by some definitions and focuses on meditation, wisdom, and compassion rather than faith or gods.