Hispano-American modernism, the period of the turn of the 19th and 20th centuries, brings about a major renewal of literary creation, which allows a self-confident and decisive input of this region's literatures into modernity. The article briefly examines the key moments of this renewal, based on the search for beauty and harmony and the desire for a perfect rhythm of the language to reflect the rhythm of the universe; it also points out the connection with the incoming avant-garde.