One early irreligious German philosopher was
Ludwig Feuerbach, who developed a theory of
anthropological materialism in his book
The Essence of Christianity. Feuerbach's work influenced contemporaries
Karl Marx and
Friedrich Engels in their writings against religion. The
Freethought movement gained support in Germany during the 19th century. The secular coming of age ceremony
Jugendweihe was developed in the 1850s, and
Ludwig Büchner founded the
German Freethinkers League in 1881. After its unification in 1871, the
German Empire sought to resist attempts by the
Catholic Church to impose its authority over the empire's sovereignty. During the
Kulturkampf, Germany passed several laws that limited the power of religious authorities over the state. The
Weimar Republic guaranteed freedom of religion when its
constitution came into effect in 1919. After the Nazi Party took control of the country in 1933, constitutional protection was ignored in
Nazi Germany. After
World War II, Germany was divided into West Germany and East Germany. While West Germany allowed for religious protection, East Germany enacted a system of state atheism and persecuted Christian groups for the first several years of its existence, resulting in East Germany having a much higher rate of irreligion than West Germany. This divide persisted after
German reunification and still exists today. == Demographics ==