who is the person who rulled the world

No single person has ever ruled the entire world. Throughout history, various leaders and empires have held significant power over large regions, but global rule has always been more complex, involving many nations and cultures. For instance: - Alexander the Great created one of the largest empires of the ancient world. - Genghis Khan established the Mongol Empire, which at its height was the largest contiguous empire in history. - Leaders like Julius Caesar, Charlemagne, and more recently figures like Napoleon Bonaparte and Adolf Hitler sought to expand their influence significantly, but none succeeded in ruling the entire world. In modern times, the concept of world governance is represented by international organizations like the United Nations, which aims to facilitate cooperation but lacks sovereign power over nations. If you have a specific historical figure or context in mind, please provide more details!