They governed the greatest empires, kingdoms and nations of their time, and their power was often absolute. These remarkable sovereigns, rulers and conquerors couldby a single act, decree or whispered asidebetter the lives of their people or condemn them to an existence plagued by war and deprivation. What made each one so special? How did they come to power? And once they assumed the mantle of leadershipwhether by birth, by fiat or by deadly designwhat did it feel like to rule? Find out with this popular National Geographic series.