 Following the success of the Reformation in Nuremberg under Andreas Osiander, it had been an exclusively Protestant imperial city and belonged to the Protestant league of imperial states, the Corpus Evangelicorum, within the "Reichstag".Subsequent historical events such as the stream of refugees after the Second World War and the increasing mobility of the population has since blurred denominational geographical boundaries, however.The influx of immigrants from Eastern Europe has also seen the establishment of an Orthodox community in Franconia.