By closing this book dense, we rather want to call it "How Jesus divided the early Christians." Indeed, many disputes about the nature of Christ are recounted in profusion. There the Arians, the adoptianistes, especially the Nestorians, which "differ so exacerbated the two natures of Christ, one human and one divine; only man is born of Mary, only man died on the cross. " First, this book is for people who know rather little Christianity. It relates indeed elements certainly quite known but interesting marking the passing of Jesus on earth, and the development of Christianity in the first centuries. In its second and most of it is directed this time to curious scholars know many adventures related to various interpretation of the nature of Christ. While it is interesting to see all natures that were given to Christ, however, this quickly becomes tiring to see the same theories developed no end - the human hand and divine in Jesus Christ - to render less clear the role of different historical councils. This book contains a lot of interesting information. But to be really exciting, it lacks the literary talent of Denis de Rougemont and his "History of the West", or narrative verve of the historian René Grousset who can make the thrilling story. On the contrary, "How Jesus became God" sometimes tend to confuse and boring the reader.