Christopher Hill (1912–2003), born in York, was a historian and academic specializing in seventeenth-century English history. As a young man he witnessed the growth of the Nazi party firsthand during a prolonged holiday in Germany, an experience he later said contributed to the radicalization of his politics. He was master of Balliol College, University of Oxford, his alma mater, from 1965 to 1978. His celebrated and influential works include Intellectual Origins of the English Revolution; The World Turned Upside Down; and A Turbulent, Seditious and Fractious People: John Bunyan and His Church.