Arthur M. Schlesinger, Jr. (October 15, 1917-February 28, 2007) was a renowned American historian, social critic, and the prolific author of numerous books including, most recently, "War and the American Presidency," He twice won both the Pulitzer Prize, for "The Age of Jackson" and "A Thousand Days," and the National Book Award, also for "A Thousand Days" as well as "Robert Kennedy and his Times," In 1998 he was awarded the prestigious National Humanities Medal.