AP World History: Modern
The American Civil War was a conflict fought from 1861 to 1865 between the Northern states (the Union) and the Southern states (the Confederacy) that seceded from the Union. This war was primarily about the issues of slavery and states' rights, leading to profound social, economic, and political changes in the United States. It marked a crucial turning point in American history, paving the way for industrialization and shaping future policies.