Allen C. Guelzo is the Henry R. Luce Professor of the Civil War Era at Gettysburg College, where he also directs the Civil War Era Studies Program and The Gettysburg Semester. He is the author of Abraham Lincoln: Redeemer President (1999) and Lincoln's Emancipation Proclamation: The End of Slavery in America (2004), both of which won the Lincoln Prize. He has written essays and reviews for The Washington Post, The Wall Street Journal, Time, the Journal of American History, and many other publications.