What does sigmurd freud's theory say about the 20th century?

The theory of psychoanalysis has revolutionized the minds of the twentieth century.

There is no doubt that the work of Sigmund Freud (1856-1939) was a reference in the cultural history of the twentieth century. His ideas about sexuality, religion, the human mind, and psychoanalysis have influenced artistic movements from surrealism to cinema, where we find references to his work in such opposite directors as Alfred Hitchcock and Woody Allen.