What was the impact on European culture and intellectual life what key thinkers Darwin Marx Nietzsche and Freud?

Darwin's theory of evolution challenged religious beliefs and shaped scientific thought. Marx's theories influenced social and economic thought, leading to the development of communism. Nietzsche critiqued traditional values and morality, advocating for individualism and self-empowerment. Freud revolutionized psychology with his ideas about the unconscious mind and psychoanalysis. Together, these thinkers helped shape European culture and intellectual life by challenging and reshaping existing beliefs and systems.