Like the Jains, Buddhists largely rejected the caste system. Today, Hinduism remains the major religion of India. Buddhism has spread to other Asian countries, while Jainism remains a minor religion in India. Around 200 years after the Aryan civilization faded, the Mauryas conquered much of South Asia. Their most famous ruler was Ashoka. He was a warrior who turned to nonviolence after converting to Buddhism around 260 B. C. His conversion influenced many people. Trade and culture thrived under his rule. Hundreds of years later, the Gupta Empire unified much of northern India. Under Chandragupta I, science, medicine, mathematics, and the arts flourished. Gupta scholars developed the decimal system in mathematics that we still use today. During the 1500s and 1600s, the Mughal Empire flowered in India. The Mughals were Muslim and the first rulers to be members of a minority religion. During this era, many South Asians converted to Islam. Some of the Mughals were tolerant. Akbar the Great encouraged freedom of religion. Culture, science, and the arts flourished under the Mughals. A Mughal emperor, Shah Jahan, built the Taj Mahal, an architectural monument in memory of his beloved wife. Highlight the names of south Asian civilizations or empires