James M. McPherson, Ordeal by Fire: The Civil War and Reconstruction, 3rd ed. (New York, NY: McGraw-Hill, 2001), 117.
…for weeks, the two candidates followed each other around the state engaging in long-range debates by speaking on the same platform only days apart. Douglas finally agree to meet Lincoln in seven face-to-face debates. These debates have become part of the folklore of American history. Thousands of farmers crowded into the seven towns to listen to three hours of outdoor oratory in weather ranging from stifling heat to cold rain. The campaign took on the character of high drama. It was David versus Goliath-only this time David, at 6 feet 4 inches, was nearly a foot taller than Goliath.