American poetry entered a period of silence at the end of the 19th century and the beginning of the 20th century. Some so-called "genteel" poets blindly imitated the low-end poetry of British Romanticism and wrote some inferior imitation poems, which led to a sluggish situation in the American poetry world. In order to reverse this situation, Harriet Munro founded the Poetry Journal in Chicago in 1912, setting off a new poetry movement of great significance. This movement ended the silent period of American poetry and cultivated a large number of outstanding new poets, such as Sandburg, Pound, Eliot, Frost, etc. This group of modernist poets carried out bold experiments and innovations in poetry creation, creating a tradition of modern American poetry that continues to this day. In the next few decades, new trends emerged in American poetry, and various schools appeared one after another, including the Imagist, "New Criticism", Object, Black Mountain, Beat, Confessional, Surrealist and other poetic schools.