The black-and-white photograph of Union Gen. William Tecumseh Sherman's glaring countenance appeared on the large projector screen, and some in the audience chuckled, while others talked quietly. "Everybody's favorite anti-Christ," remarked Dr. Alan C. Downs, an associate professor of history at Georgia Southern University, drawing more laughs from the Bulloch County Historical Society meeting he was addressing Monday at the Nessmith-Lane Conference Center. Then red horns appeared on either side of Sherman's head, eliciting heartier laughs.