Political maps of North America ha ve changed dramatically over time. On the eve of the Civil War in America, thcsc political maps show the extent to which the nation was growing and diversifying. Ib. Analyze (examine methodically and in detail the constitution of structure of something, especially information, typically for purposes of explanation and interpretation) each of these maps individually and record your observations, 2. Then, compare (estimate, measure, or note the similarity or dissimilarity between) them to identify the significant changes over time. 3. Finally, explain (makè an idea, situation, or problem dear to someone by describing it in more detail or revealing relevant facts or ideas) the circumstances that resulted in each of the major changes to the political geography from the time of the first map to the time of the sixth map. Write a defensible claim about the historical process(es) that caused the Civil War.