American Civil War Review NotesIntroduction: The American Civil War was a war fought in the United States from 1861 to 1865. It was primarily fought between the northern states (Union) and the southern states (Confederacy). It was a result of differences in opinions regarding slavery and states’ rights. The war lasted for four years and resulted in the death of over 620,000 soldiers. Covering the causes of the war, key battles, important speeches and significant legislative acts helps students r