I'm sure your text materials discuss Alexander. So does this biography:
http://www.historyofmacedonia.org/AncientMacedonia/AlexandertheGreat.html
What challenges did Alexander the Great Overcome?
2 answers
Here's another good source of information about Alexander of Macedonia:
http://www.biography.com/people/alexander-the-great-9180468
http://www.biography.com/people/alexander-the-great-9180468