The answer is the "Appalachian Mountains"
The Articles of Confederation created a national government composed of a Congress, which had the power to declare war, appoint military officers, sign treaties, make alliances, appoint foreign ambassadors, and manage relations with Indians. ... In addition, Congress could not draft soldiers or regulate trade.
The Articles of Confederation reflected the principle of federalism because it "<span>divided power between state and national governments," since this is the basis behind a federalist nation. Although it gave very little relative power to the national government. </span>
The role that Monte Albán play in the development of cities in Mesoamerica is that it has become the earliest evidence of calendar use in Mesoamerica. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.