Donald Lawrence Keene was an American scholar, historian, teacher, writer, and translator of Japanese literature. He was Professor Emeritus and Shincho Professor Emeritus of Japanese Literature at Columbia University, where he taught for over fifty years. Soon after the 2011 Tōhoku earthquake and tsunami, he retired from Columbia, moved to Japan permanently, and acquired citizenship under the name Kīn Donarudo which is essentially his birth name in the Japanese name order. This was also his poetic pen name and occasional nickname, spelled in the ateji form 鬼怒鳴門.