Post-Modernism is a late 20th century style that departs from modernism and questions grand theories and strict definitions of art. It emerged in various fields in the late 19th century and was applied to many 20th century movements that reacted against imperialist capitalism. In literature, postmodernism was established with the journal "boundary 2" in 1972, featuring writers like David Antin who experimented with form. In music, minimalism arose in the 1970s as composers like Steve Reich and Philip Glass created simple, accessible works that broke from atonal modernism.