And this is why the American Civil War is the most popular topic in the Library of Congress. The Whys, Hows, and So Whats were debated before the first shot was fired on Fort Sumter, and they are debated to this day. The analyses run from the sublime to the ridiculous, but, so be it. Two individuals can read exactly the same books, articles, diaries, and letters, and draw opposite conclusions. And that's why it's such a rich field.