Alexander the Third of the Kingdom of Macedonia (356-323 BC), better known as Alexander the Great, single-handedly changed the nature of the ancient world in just over a decade. Overcoming all odds. Despite difficult obstacles, Alexander led his army to victories throughout Persian territory in Asia Minor, Syria and Egypt without once experiencing defeat. His greatest victory was the Battle of Gaugamela, in what is now northern Iraq. The young king of Macedonia, ruler of Greece, lord of Asia