Alexander the Great was King of Macedonia from 336 to 323 B.C. During his leadership he united Greece, conquered the Persian Empire and spread culture throughout his empire. Alexander’s father, Philip II started the unification of Greece. When Alexander took the throne he continued what his father started. The treaty of Corinth was the main reason for Greece uniting. The treaty made the King of Macedonia leader of all Greeks except Spartans. He had to defeat the Thebes to make an example of his determination. Uniting Greece was just the beginning of his large empire. In 334 B.C. Alexander moved to conquer Persia. He started with the Battle at Granicus, and then moved to conquer Issus and Gaugamela. He then allowed his armies to loot the
