Alexander was the son of King Philip II, and when just 13 years old, he tamed a horse no one else could ride named Bucephalus, which impressed his father so much that he said, O thy son, look thee out at a kingdom equal to and worthy of thyself, for Macedonia is too little for thee. By that time, he was already an accomplished general, but over the next decade, he expanded his empire with unprecedented speed, and he is famous for having never lost a battle. Today, we're going to look at Alexander of Macedon's story by examining three possible definitions of greatness. First, maybe Alexander was great because of his accomplishments. This is an extension of the idea that history is the record of the deeds of great men. Now, of course, that's ridiculous. For one thing, half of people are women.