From the annals of the New York Times Opinionator column and timed to coincide with the 150th anniversary of the Battle of Gettysburg, Brown University historian Widmer has pieced together a selection for readers both mildly and deeply interested in the Civil War. Did you know that four slave-holding states remained in the Union after the Civil War began? That President Lincoln was elected without a single electoral vote from the South? Or that West Virginia came into existence when the western part of Virginia "seceded from secession"? Tidbits like these populate pages culled from brief essays in the paper's online column, and the book's format allows for smaller, captivating stories to be told?the kind that are often over-looked in epic histories?like Lincoln's last visit with his step-mother or how Nick Biddle, an African-American servant to a captain in the Union Army, might have been the first to shed blood in hostility during the war. Well-known historians such as Ken Burns, Stephanie McCurry and Adam Goodheart are all represented in this absorbing and important series. B&W photos.