Twenty-five hundred years ago, trade caravans came from every direction to Persepolis in modern Iran, the heart of the Achaemenid Persian Empire that spanned from the Indus to the Mediterranean, from the Lybian desert to the steppes of Central Asia. The empire reached its greatest extent under Darius I, who reigned in the gleaming palace complex of Persepolis, regarded by many as the eighth wonder of the world. In this program, students will explore the monumental challenges faced by the Persian Empire in the fourth century BCE by the military genius of Alexander the Great of Macedonia, whose victorious troops hastened the fall of what had been the center of the ancient world.