It is classified into two subgenres: classic narrative and modern narrative. The key elements are rising action, climax, resolution, and arc. In modern narrative history, the traditional emphasis on chronology gives way to a more causal approach that focuses on processes over events. This type of history tends to be more analytical and less subjective than conventional narrative history. Numerous other genres of narrative history exist. Examples include oral tradition history, biography, memoir, and fantasy. Classic narrative history: A History of Rome by Edward Gibbon is an example of a work belonging to this genre. It is made up of six volumes that cover Roman history from its founding in 753 B.C. to the end of the Western Empire in 476 A.D. Modern narrative history: Daniel Goldhagen's Hitler's Willing Executioners is an example of a work belonging to this genre. It tells the story of Nazi Germany through interviews with former SS officers and others who were involved in genocide. Oral tradition history: My Life With John Lennon is an example of an oral tradition history book. It was written by Paul McCarty and published in 2004.