Like King Tut, Alexander the Great was amazingly good at being a dead person. Let's go to the Thought Bubble. So after Alexander of Macedon died, everyone – from the Romans to Napoleon to Oliver Stone – loved him. And he was an important military model for many generals throughout history. But his main post-death legacy may be that he introduced the Persian idea of absolute monarchy to the Greco-Roman world, which would become a pretty big deal. Alexander also built a number of cities on his route that became big deals after his death, and it's easy to spot them because he named most of them after himself and one after his horse. The Alexandrian Egypt became a major center of learning in the classical world and was home to the most amazing library ever, which Julius Caesar probably accidentally burned down while trying to conquer a bunch of land to emulate his hero, Alexander the Great.