Commemorating the 150th anniversary of the Battle of Gettysburg, this special ebook from National Geographic Magazine covers one of the most significant periods in the history of the United States. Full of maps, information graphics, timelines, and archival photographs to illuminate and educate, the ebook also highlights the many inventions that came as a result of the war. Civil War buffs and history-lovers alike will enjoy this thrilling new ebook that spotlights an important period in American history.