Lutheranism, Calvinism, and many other christian Protestant regions started in Germany just because the founders were german. Most printing press were in Germany and Italy. Germanic states I should say were facing a lot turmoil so it made it rip for distressed individuals accept crazy new ideas.
Britain become Protestant on the act of supremacy for king marriage issues.
So we know that the gray eliminates the second most popular christian kind or religion in Europe.
Italy is very well known Catholic because the pope lives there and the culture; it is yellow so it has be D