Richard Hofstadter (1916-1970) was the author of many classic and bestselling works of American history, among them Social Darwinism in American Thought (1944), The American Political Tradition: And the Men Who Made It (1948), The Age of Reform (1955), and America at 1750: A Social Portrait (1971). He spent most of his career teaching at Columbia University. He was the recipient of two Pulitzer Prizes, for The Age of Reform and Anti-Intellectualism in American Life. Sean Wilentz is the George Henry Davis 1886 Professor of American History at Princeton University. His many books include The Politicians and the Egalitarians: The Hidden History of American Politics (2016); Bob Dylan In America (2011); and The Age of Reagan: A History, 1974-2008 (2008). The Rise of American Democracy: Jefferson to Lincoln (2005) was awarded the Bancroft Prize, and he has received two Grammy nominations for his writings on music.