Note that neither the Han dynasty nor the Tang dynasty started out occupying as much territory as the maps from part A show. The maps show the dynasties’ territories only at the height of each empire. In about 50 to 100 words, explain what you think likely helped each empire spread over so much territory. Was it trade, conquest, or some mixture of both? Be sure to support your answer with evidence, and don’t hesitate to look up additional information if you need help with your answer.