<human>:  How did the art movement ‘surrealism’ start?
<bot>: The movement started in the 1920s, and was inspired by the writings of Sigmund Freud. Surrealism was a reaction against the rationalist worldview of the time, which had dominated the arts since the Renaissance. The surrealists believed that the world was irrational, and that the rational worldview was an illusion. Surrealism embraced the irrational, the dreamlike, and the absurd, and it sought to liberate the artist from the constraints of reason.