What term was used to describe the rough divide between free and slave states by the mid-1800s?

Is the idea of containment relevant to american forge and policy today why or why not

Which statement is true of both presidential and parliamentary systems of government?

Why were americans concerned about the future of north and south america? check all of the boxes that apply. they worried that european countries would take over independent countries in latin america. they thought that european nations could threaten democracy in the united states. they believed that europe would never again return to the americas.