Why the crisis grew between 1845 and 1861
Why the crisis grew between 1845 and 1861

From 1845 to 1861, the United States moved from argument to armed conflict. The central problem was whether slavery would expand westward as the nation grew.
Step-by-step lessons on AQA A Level History The origins of the American Civil War, c1845–1861. Each one builds up to exam-style questions. Build a secure grasp of the outline narrative for your breadth and depth periods first, since the source-evaluation and historical-interpretations questions that carry a large share of the marks depend on that contextual knowledge.