Influence of the Greek Philosophers Notes by Dr. Honora M. Finkelstein Socrates | Plato | Aristotle | Alexander the Great Alexander the Great conquered the then known world at the end of the Hellenic period. He united his empire by insisting that everyone learn to speak koine, a form of demotic Greek used for business. Commerce is what unites cultures, so he united his empire with both commerce and language. It had the effect of making Greek the diplomatic language for hundreds of years thereafter. This also made possible the spread of Christianity by St. Paul. Made with Xara Website by Susan Smily