An assassination, an impeachment and peacemaking: episodes from US presidential history
Five people who witnessed an aspect of the death of John F Kennedy share their stories
US President Richard Nixon meets the leader of communist china Chairman Mao in Beijing.
The Yalta conference that decided the shape of post-war Europe
The Senate chamber was turned into a court to put the president on trial, 7 January 1999
The man who helped to save Reagan's life
Top-secret documents, released by the CIA, shine a light on intelligence advice.
