Guenter U. Lewy is an American author and political scientist who is a professor emeritus at the University of Massachusetts Amherst. His works span several topics, but he is most often associated with his 1978 book on the Vietnam War, America in Vietnam, and several controversial works that deal with the applicability of the term genocide to various historical events. In 1939 he immigrated to Palestine and then to the United States. He has been on the faculties of Columbia University, Smith College, and the University of Massachusetts Amherst. He currently lives in Washington, D.C. and is a frequent contributor to Commentary. 

January 1st, 1923 in Wroc?aw (Age 101)