These peoples have produced an important and influential literature. Henrik Ibsen, a Norwegian playwright, was largely responsible for the popularity of modern realistic drama in Europe, with plays like "The Wild Duck" and "A Doll's House". Nobel prizes for literature, itself a Scandinavian award, have been awarded to Selma Lagerlöf, Verner von Heidenstam, Karl Adolph Gjellerup, Henrik Pontoppidan, Knut Hamsun, Sigrid Undset, Erik Axel Karlfeldt, Frans Eemil Sillanpää, Johannes Vilhelm Jensen, Pär Lagerkvist, Halldór Laxness, Nelly Sachs, Eyvind Johnson, Harry Martinson, and Tomas Tranströmer.