Money rules the world, and the world it rules threatens to end in disaster - socially and ecologically. But why does money determine the course of the world at all? Why is it so dominant that even the most powerful governments stand at attention before it and we can hardly imagine that it could ever have been otherwise? In his grandiose description of how money came into the world, Eske Bockelmann shows, contrary to current beliefs, that this special medium of exchange only became established in Europe in the late Middle Ages - even though markets and coins may have existed before then.