Alexander III of Macedon (Alexander the Great)
-Born in Pella in 356 BC
-Alexander succeeded his father, Philip II, to the throne at the age of twenty.
-By the age of thirty he had created one of the largest empires of the ancient world.
- He was undefeated in battle and is considered one of history's most successful military commanders.
-During his youth, Alexander was tutored by the philosopher Aristotle until the age of 16.
-Alexander inherited a strong kingdom and an experienced army. He had been awarded the generalship of Greece and used this authority to launch his father's military expansion plans. In 334 BC, he invaded the Achaemenid Empire, ruled Asia Minor, and began a series of campaigns that lasted ten years. Alexander broke the power of Persia in a series of decisive battles, most notably the battles of Issus and Gaugamela. He subsequently overthrew the Persian King Darius III and conquered the entirety of the First Persian Empire. 
Seeking to reach the "ends of the world and the Great Outer Sea", he invaded India in 326 BC, but was eventually forced to turn back at the demand of his troops. 
-Alexander died in Babylon in 323 BC the city he planned to establish as his capital, without executing a series of planned campaigns that would have begun with an invasion of Arabia. In the years following his death, a series of civil wars tore his empire apart, resulting in several states ruled by the Diadochi, Alexander's surviving generals and heirs.
-Alexander's legacy includes the cultural diffusion his conquests engendered. He founded some twenty cities that bore his name, most notably Alexandria in Egypt. Alexander became legendary as a classical hero in the mold of Achilles, and he features prominently in the history  and myth of Greek and non-Greek cultures. He became the measure against which military leaders compared themselves, and military academies throughout the world still teach his tactics.