Historian Arthur Schlesinger Jr., one of the most visible faces of American liberalism on U.S. television news programs since the late '50s, died Wednesday in New York, the New York Times reported on its website today (Thursday). Schlesinger, an adviser to John and Robert Kennedy, chronicled their careers in books and TV programs (he was the writer of the two-part NBC White Paper: The Age of Kennedy), and was awarded the Pulitzer Prize and the National Book Award in 1966 for A Thousand Days: John F. Kennedy in the White House. A movie buff who served as film critic for Show magazine in the 1960s, Schlesinger was appointed to the jury at the Cannes Film Festival in 1964.