The literary and cultural movement that occurred after World War I and addressed the societal problems created by the Great Depression is known as the Lost Generation. The term was popularised by Ernest Hemingway in his 1926 novel The Sun Also Rises. The Lost Generation is associated with a sense of disillusionment, despair, and a loss of faith in traditional values and institutions. Writers of the Lost Generation often explored themes such as alienation, hedonism, and the search for meaning in a chaotic and uncertain world.