The Mughal Empire was founded in 1526 by Babur, who conquered Delhi. It reached its height under Akbar, who expanded the empire, instituted reforms like the mansab system, and promoted religious tolerance. Akbar encouraged debate between religious scholars and incorporated aspects of multiple faiths into a new syncretic religion. However, his grandson Aurangzeb reversed religious policies and persecuted non-Muslims, sowing conflict. The empire declined due to unrest, challenges from regional powers, and invasions like Nadir Shah's sacking of Delhi in 1739, leaving India politically fragmented.