The History of Rock & Roll is an American radio documentary on rock and roll music, first syndicated in 1969. Originally one of the lengthiest documentaries of any medium (48 hours in the 1969 version, 52 hours each for the 1978 and 1981 versions), The History of Rock & Roll is a definitive history of the Rock and Roll genre, stretching from the early 1950s to the present day. The "rockumentary," as producers Bill Drake and Gene Chenault called it, features hundreds of interviews and comments from numerous rock artists and people involved with rock and roll.