"Lee Surrenders!" "President Murdered!" "Booth Killed!" screamed the headlines of American newspapers in April 1865, leaving little room for mention of a maritime disaster that to this day stands as America's worst. On April 27, 1865, the Sultana, a wooden-hulled steamboat carrying six times the legal capacity, exploded on the Mississippi River, killing more than 1,800 men. Here is the little-known story.