History textbooks say that the Civil War began with the shelling of Fort Sumter on April 12, 1861. What followed is the American epic, written in blue and gray and gore. So how is that 150 years later, we are still fighting over why the war was fought? Few historical questions stir up as much passionate confusion as that one—even though scholars consider it a settled question. In this ebook, veteran TIME writer, David Von Drehle explores process of forgetting, denying, and rediscovering the meaning of the Civil War.