Timothy David Snyder (born August 18, 1969) is an American author and historian specializing in the history of Central and Eastern Europe, and the Holocaust. He is the Richard C. Levin Professor of History at Yale University and a Permanent Fellow at the Institute for Human Sciences in Vienna.
Snyder is a member of the Council on Foreign Relations and the Committee on Conscience of the United States Holocaust Memorial Museum.
Source: Timothy Snyder on Wikipedia.