Introduction: a Christian world? / Geoffrey Barraclough -- Christianity in the Roman empire / William H.C. Frend -- The rise of Christian art / Joachim Gaehde -- The conversion of the barbarian peoples / Ian N. Wood -- The Greek church and the peoples of eastern Europe / Steven Runciman -- Medieval christendom / Colon Morris -- Popular religious movements in the middle ages / Margaret Aston -- The age of the reformation / Hans Hillerbrand -- The social impact of Puritanism / J. William T. Youngs -- Religion in the age of the baroque / Judith Hook -- Christianity and industrial society / Owen Chadwick -- Religion at the grass-roots / Paul A. Carter -- Christianity in the contemporary world / Adrian Cunningham