1892-1982. US poet. He made his name with the long narrative poem `Conquistador' 1932, which describes Cortes' march to the Aztec capital, but his later plays in verse, Panic 1935 and Air Raid 1938, deal with contemporary problems. He was born in Illinois, was assistant secretary of state 1944-45, and helped to draft the constitution of UNESCO. From 1949 to 1962 he was Boylston Professor of Rhetoric at Harvard, and his essays in Poetry and Opinion 1950 reflect his feeling that a poet should be `committed', expressing his outlook in his verse. Born in Illinois, he went to France in 1923, and during his expatriate years there published his most personal poetry, including `Ars Poetica' 1926. He was assistant secretary of state 1944-45, and helped to draft the constitution of UNESCO. From 1949 to 1962 he was Boylston Professor of Rhetoric at Harvard, and his essays in Poetry and Opinion 1950 reflect his feeling that a poet should be `committed', expressing his outlook in his verse.