why alexander was important

Alexander III the Great, the King of Macedonia and conqueror of the Persian Empire is considered one of the greatest military geniuses of all times. He was inspiration for later conquerors such as Hannibal the Carthaginian, the Romans Pompey and Caesar, and Napoleon.  Alexander was born in 356 BC in Pella, the ancient capital of Macedonia. He was son of Philip II, King of Macedonia, and Olympias, the princess of neighboring Epirus. He spent his childhood watching his father transforming Macedonia into a great military power, winning victory after victory on the battlefields throughout the Balkans.  When he was 13, Philip hired the Greek philosopher Aristotle to be Alexander’s personal tutor.  During the next three years Aristotle gave Alexander a training in rhetoric and literature and stimulated his interest in science, medicine, and philosophy, all of which became of importance in Alexander’s later life.  In 340, when Philip assembled a large Macedonian army and invaded Thrace, he left his 16 years old son with the power to rule Macedonia in his absence as regent, which shows that even at such young age Alexander was recognized as quite capable.  But as the Macedonian army advanced deep into Thrace, the Thracian tribe of Maedi bordering north-eastern Macedonia rebelled and posed a danger to the country.  Alexander assembled an army, led it against the rebels, and with swift action defeated the Maedi, captured their stronghold, and renamed it after himself to Alexandropolis. 

http://www.historyofmacedonia.org/AncientMacedonia/AlexandertheGreat.html