The document discusses two poems from the 20th century - "Mending Wall" and "Languages". "Mending Wall" explores the theme of neighbors with large properties and was written during a time of economic prosperity just before the Great Depression. "Languages" was written in 1916 during World War 1, when people were looking to the future with new technologies despite the war. Both poems reflect the times and contexts in which they were created through their themes of neighbors, language, and human progress.