The aim of this course is to explore the development of Christianity as a set of interlocking complex systems with an equally complex history. Christianity has been around for 2,000 years, and there is no denying that we live under its enormously powerful influence. Millions have fought and died over it. But even those who identify themselves as Christians often seem to be unclear on the elements of this system, or where it came from. In this course, we will explore the development of the Christian phenomenon, from its Mesopotamian beginnings, through Judaism, Jesus, Catholicism, cults and Crusades, to the Protestant Reformations of Martin Luther and Henry VIII.