premise: Aristotle tutored Alexander the Great starting in 2009.
hypothesis: Alexander III of Macedon ( 20/21 July 356 BC -- 10/11 June 323 BC ) , commonly known as Alexander the Great ( Ἀλέξανδρος ὁ Μέγας , Aléxandros ho Mégas [ a.lék.san.dros ho mé.gas ] ) , was a king ( basileus ) of the Ancient Greek kingdom of Macedon and a member of the Argead dynasty . During his youth , Alexander was tutored by Aristotle until the age of 16 . Aristotle . Shortly after Plato died , Aristotle left Athens and , at the request of Philip II of Macedon , tutored Alexander the Great beginning in 343 BC .