A University of Virginia professor has won a Pulitzer Prize. Historian Alan Taylor is an esteemed expert on Colonial America and the early U.S. public. His prize-winning book is “The Internal Enemy: Slavery and War in Virginia, 1772-1832.” Taylor, who was hired just last month, says he realized he’d won when his email went crazy. This is not the first time Taylor has won the prize. He received his first Pulitzer in 1996 for “William Cooper’s Town: Power and Persuasion on the Frontier of the Early Republic.” That book snagged him a Bancroft Prize, as well.