Professor Diarmaid MacCulloch - one of the world's leading historians - reveals the origins of Christianity and explores what it means to be a Christian

Diarmaid MacCulloch explores the extraordinary rise of Roman Catholic Church.

Diarmaid MacCulloch examines the concept of scepticism in Western Christianity.

Diarmaid MacCulloch explores Eastern Orthodox Christianity's fight for survival.

Diarmaid MacCulloch traces the growth of Evangelical Protestantism across the globe.

Diarmaid MacCulloch looks at the Reformation and its attack on the Catholic Church.

Leading British writer Howard Jacobson, a Jew himself, examines the origins and consequences of Christian belief. He argues that although Christianity originated in devout Judaism, for Jews it has been, for the most part, a calamity.

Acclaimed war correspondent Rageh Omaar examines the effect the Crusades have on the world today. In the West, the Crusades are a chapter of Christian history that has little impact on our everyday lives, but in the Middle East many believe that the Crusades are happening again.

Andrew Graham-Dixon explores the ancient Christian practice of preserving holy relics and the largely forgotten art form that went with it, the reliquary.

Documentary telling the unexpected story of how arguably the greatest work of English prose ever written, the King James Bible, came into being.