Some of the major significant religious developments occurred in Hinduism. The worship of new deities, the construction of temples by royalty and the growing importance of Brahmanas, the priests, as dominant groups in society were the new changes. Brahmanas' importance grew due to their knowledge of the Sanskrit language. They were patronized by the Emperors. The idea of bhakti emerged among people. The merchants and migrants brought with them the teachings of Quran, the holy book of Muslims.