Murder mystery: what killed Christianity in Europe?

[Minimalist]

The 30 Years War was the beginning of the end.  The church lost control and the horrors of the war led to the Enlightenment.

http://www.articlemyriad.com/consequence...years-war/

When discussing the last years of the Thirty Years War it is almost easy to forget that it all began because of religious differences rather than those based on politics and geography. One consequence of the end of the war was that the Holy Roman Empire and the Catholic Hapsburgs would no longer dictate the religious beliefs to a large portion of Europeans. Instead, after the war was over and princes of Germany were allowed to declare their own affiliations, Western Europe changed a great deal. Another important aspect of the Peace of Westphalia in terms of overall European history and its religious struggles, is that after its was agreed upon, all the princes within Germany had the right to declare their provinces as either Catholic, Lutheran or Calvinist. This allowance created divisions throughout Europe based on religious affiliation with the Catholics in the south of Europe, the Lutherans in central Germany, and the Calvinists in the northern part of Europe. While this is not to say that the close of the war mended relations between those of diverse faiths, this separation made it so that this was the last real religious war fought.