Gettysburg: What If the South Had Won?

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Gettysburg: What If the South Had Won?         Would Confederate victory have turned American history, or just prolonged the war? Read More WATCH VIDEO: What Was the Lincoln Conspiracy? John Wilkes Booth was a part of a larger conspiracy that aimed to decapitate the Union government. Surprise! Megaquakes Caught Sinking Volcanoe         Leveling cities and launching tsunamis aren't the only things megaquakes can do. Read More WATCH VIDEO: Mt. Rainier Faces Grim Future Another eruption of this active volcano isn't the only pending disaster facing Washington's Mt. Rainier. Wrong Reality: If an American Was First in Space         If the United States had managed to put the first man in space, the course of spaceflight would have been very different. Read More WATCH VIDEO: Our Favorite Chris Hadfield Moments See highlights from the beloved ISS commander, space musician and teacher. White House Down: Being a Secret Service Agent         DNews goes to a long-time veteran of the Secret Service to see what it takes to be a member of this elite group. Watch Follow Discovery News on Facebook! Get your sci-tech headlines all day on Twitter too! Follow us @Discovery_News. At Discovery we value your privacy. If you would like to be removed from Discovery News emails like this, please click here to our subscription center, where you can manage your account. We recently updated our privacy policy. This policy is effective as of 10/30/07. To see new policy click here . Discovery Communications, LLC One Discovery Place Silver Spring, MD 20910 © 2013 Discovery Communications, LLC