Humayan falls down stairs and dies, succeeded by 13-year-old son Akbar, later Akbar the Great. Akbar consolidates the Mughal Empire. Through incessant warfare, he is able to annex all of northern and part of central India. Akbar builds a new capital, Fatehpur Sikri, near Delhi. Although he never renounces Islam, he takes an active interest in other religions, persuading Hindus, Parsis, Christians, and Muslims to engage in religious discussion. He establishes political, administrative, and military structures that give the empire stability and staying power. During his reign, the nature of the state changed to a secular and liberal one, with emphasis on cultural integration. He also introduced several far-sighted social reforms, including prohibiting sati, legalising widow remarriage and raising the age of marriage.