The Aryans, who were warriors and herders from eastern Europe and western Asia, conquered India after being forced to migrate from Persia due to drought, famine, and disease or other invaders. They brought significant changes to India by introducing horses, the Sanskrit language, Hindu scriptures called the Vedas, and Hinduism. The Aryans also established the caste system with five classes - Brahmans as the highest priests and scholars, Kshatriyas as rulers and warriors, Vaisyas as farmers and merchants, Sudras as laborers and craftspeople, and Untouchables at the lowest level. Buddhism originated in India after the prince Siddhartha Gautama, deeply