Alexander the Great

Alexander III of Macedon (20 July 356 BC- 10 June 323 BC), better known as Alexander the Great was born to Philip II of Macedon. Tutored by the famous Greek philosopher Aristotle, Alexander succeeded his father following his assassination, when Alexander was only 20 years old.

During the next 13 years, Alexander was undefeated in battle and created the largest empire the world had seen up until that time. It incorporated most of modern Greece and Egypt, the former Persian Empire, and reached to the western most parts of India. Had his soldiers not revolted at this point, Alexander may have continued expanding his empire eastward.

Alexander was well-known for being a brilliant strategist. When confronted with scythed chariots, Alexander, realizing that the vehicles were already cumbersome, devised a method to increase this disadvantage. At the last second, his soldiers formed a U-shape so that the chariots would become trapped by the bodies of the soldiers they killed, leaving the charioteers at the mercy of the Macedonian xystons.

Another story showcasing Alexander's intellect is that of the Gordian Knot. According to legend, the knot could only be untied by the future ruler of Asia. Hearing of the legend, Alexander traveled to Gordium to attempt it. Unable to find the end of the knot to unbind it, Alexander claimed it did not matter how the knot was undone and cut through it with his sword, producing the required ends.

(From the deadliest warrior wiki)