Education
Born in Washington, District of Columbia, United States, he was educated in public schools in Baltimore, Maryland, and graduated from Johns Hopkins University with a Doctor of Philosophy in history at age 22.
Born in Washington, District of Columbia, United States, he was educated in public schools in Baltimore, Maryland, and graduated from Johns Hopkins University with a Doctor of Philosophy in history at age 22.
He wrote on national affairs for TIME magazine. He joined Princeton University as an assistant professor in 1942. He became a full professor in 1955, until retirement in 1985.
He was special advisor to President Lyndon B. Johnson from 1963 to 1966.
He served as president of the Society of American Historians from 1962 to 1969. From 1959 to 1967, he was the moderator on a discussion program, The Open Mind, on National Broadcasting Company. His papers are held at the Library of Congress, and the University of California, Los Los Angeles