Nicholas S. Timasheff (1886-1970) taught at the University of St. Petersburg, the University of Prague, the Slavic Institute of the Sorbonne, and at Harvard University, before joining the faculty of arts and sciences at Fordham University in 1940. His most well-known works include Religion in Soviet Russia, 1917-1942 (1942), The Great Retreat: The Growth and Decline of Communism in Russia (1946), and Sociological Theory: Its Nature and Growth (1955).