Answer:The military, commanded by the emperors, expanded to many neighboring regions allowing economic growth and prosperity as well as opening up new trade routes. The people of the Han Dynasty were very advanced in the way they interacted with the countries and empires in the surrounding area.
Just letting you know, I got this answer from the internet. 1) hunter-gathering tribes 2) small towns and nomadic groups 3) city-states and small kingdoms 4) empires 5) nation-states
