In addition to a form of nationalism in Austria that looked toward Germany, there have also been forms of Austrian nationalism that rejected unification of Austria with Germany on the basis of preserving Austrians' Catholic religious identity from the potential danger posed by being part of a Protestant-majority Germany, as well as their different historical heritage regarding their mainly Celtic, Slavic, Avar, Rhaethian and Roman origin prior to the colonization of the Bavarii.[53][54][55]