Compare and contrast the rise, decline, and collapse of the Han and Roman empires. How would you explain the similarities you see? What could account for the differences you note? Are there common threads uniting the histories of these mighty Eurasian empires? In your answer, you need to specify what environmental, economic, social, political, military, and cultural factors promoted imperial unification and what environmental, economic, social, political, military, and cultural factors led to imperial disintegration and decline.
