10.Aristotle (384-322):
Aristotle was a greek philosopher.He was born in Stagira ,Chalkidice in classical Greece.His father's name was Nicomachus who died when Aristotle was just a child.Being a philosopher he wrote on many subjects including biology, zoology, metaphysics, logic, poetry,music,politics,government etc.
Aristotle invented many theories related to life environment and many more.Aristotle began tutoring Alexander the great in 338 B.C. later on he founded his own school,the lyceum in Athens where he spent most of the rest of his life studying, teaching and writing.He eventually died in 322 B.C