Nellie Connally

They are the tragic stories at the heart of some of history's most defining moments - tales of hatred and obsession, fanaticism and a burning desire for attention. In Assassinations That Changed the World, HISTORY examines the famous assassinations and assassination attempts that have left their mark on humanity.

Hosted by Orson Welles, this documentary utilizes a grab bag of dramatized scenes, stock footage, TV news clips and interviews to ask: Did 16th-century French astrologer and physician Nostradamus actually predict such events as the fall of King Louis XVI, the rise of Napoleon, the assassination of President John F. Kennedy? And are there prophecies that have yet to come true?

illustrates how directors pushed boundaries and altered the art of filmmaking during the turbulent, swinging 1960s. Narrated by Woody Harrelson, "Reel Radicals" features clips from such seminal films as Arthur Penn's "Bonnie and Clyde" (1967); Mike Nichols' "The Graduate" (1967); Dennis Hopper's "Easy Rider" (1969); John Frankenheimer's "The Manchurian Candidate" (1962); Stanley Kubrick's "Dr. Strangelove" (1964) and "2001: A Space Odyssey" (1968); John Schlesinger's "Midnight Cowboy" (1969); Richard Brooks' "Elmer Gantry" (1960) and "In Cold Blood" (1967); and Norman Jewison's "In the Heat of the Night" (1967) and "The Thomas Crown Affair" (1968). Frankenheimer, Jewison, Hopper, Schlesinger, Penn, Buck Henry, Paul Mazursky, Roger Corman and Arthur Hiller are among the filmmakers who discuss the decade.

Looking back over 40 years television and print journalists recall their stories and memories of reporting the murder of President Kennedy and how it changed the country and changed the way the public gets it's news.

This special seeks to explain the enigmatic Oswald using a brand new approach. No other documentary has exclusively traced Oswald's actions in the minutes, hours and days following the events in Dallas. By shifting the focus on that November weekend, we're able to tell a familiar story in an unfamiliar way, providing a refreshing new perspective on Oswald himself, as well as on the Kennedy assassination.

They are the tragic stories at the heart of some of history's most defining moments - tales of hatred and obsession, fanaticism and a burning desire for attention. In Assassinations That Changed the World, HISTORY examines the famous assassinations and assassination attempts that have left their mark on humanity.