Alexander the Great was an ancient Macedonian ruler and one of history’s greatest military minds who, as King of Macedonia and Persia, established the largest empire the ancient world had ever seen. By turns charismatic and ruthless, brilliant and power hungry, diplomatic and bloodthirsty, Alexander inspired such loyalty in his men they’d follow him anywhere and, if necessary, die in the process. Though Alexander the Great died before realizing his dream of uniting a new realm, his influence on Greek and Asian culture was so profound that it inspired a new historical epoch—the Hellenistic Period.