Peter Gay

Peter Gay (born Peter Joachim Fröhlich; June 20, 1923 – May 12, 2015) was a German-American educator and psychohistorian. He was the Sterling Professor of History Emeritus at Yale University and former director of the New York Public Library's Center for Scholars and Writers (1997–2003). 
Gay received the American Historical Association's (AHA) Award for Scholarly Distinction in 2004. He was the author of more than twenty-five books, including "The Enlightenment: An Interpretation", a multi-volume award winner; "Weimar Culture: The Outsider as Insider" (1968), a bestseller; and the widely translated "" (1988).
Gay was born in Berlin, Germany in 1923. He immigrated to the United States in 1941. From 1948 to 1955 he was a political science professor at Columbia University, and then a history professor from 1955 to 1969. Gay died in New York City, aged 91.