In a time of near-universal adoption of Christianity, Germany was an intellectual centre for European freethought and humanist thinking, whose ideas spread across Europe and the world in the Age of Enlightenment.One early irreligious German philosopher was Ludwig Feuerbach, who developed a theory of anthropological materialism in his book The Essence of Christianity.[1] Christianity still has a notable presence in Western Germany, although the majority of the population in the northern states of Hamburg, Bremen and Schleswig-Holstein are not registered members of the main Catholic and Protestant churches.[13][14] An explanation for this, popular in other regions, is the state atheist policy of the German Democratic Republic's Socialist Unity Party of Germany.[6] A 2017 Pew Research Center survey in Germany found that less Protestants believed in God with absolute certainty than Catholics.
Non-religious population according to the 2011 census (including other religions and not specified)