Alexander the great was born in 356 BC. During his youth Alexander was tutored by a man named Aristotle. Alexander succeeded his fathers throne at the age of 20. He spent most of his years on a unpredictable military campaign through Asia, and northeast Africa.
By the age of thirty Alexander created one of the largest empires of the ancient world, stretching from Greece to Northwest India. He was undefeated in battle and is widely considered one of the most successful military commanders in history.
During his youth Alexander was tutored by philosopher Aristotle until the age of 16. After the assassination of his father Philip in 336 B.C, Alexander succeeded his father to the throne and inherited a strong kingdom and strong army.
Alexander was awarded generalship of Greece and used this authority to launch his fathers Panhellenic project to lead the Greeks in the conquest of Persia.
After many battles Alexander over threw Persian king Darius iii and conquered the Achaemenid empire in its entirety. At that point his empire stretched from the Adriatic sea to the Indus river.